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Traffic in Malta, a risky business

I have often been surprised how dangerous it is to cross a street in Malta, especially if there is not a pedestrian crossing. It appears that motorists among themselves have a contest to see who can scare the pedestrians most.  It is not surprising that Malta is among the countries with the highest accident rates in traffic in Europe. If the roads were in a better condition the victims would, due to possible higher speed, probably be many more.
Another thing that amazes a foreigner from northern Europe, is the constant honking. If honking were an Olympic event Malta would undoubtedly win a medal of high value. Many people I have discussed this matter with have expressed a thought that may be Maltese driving licenses are issued by Disney World or come withe the cereal packages from Scotts.
Another thing that is surprising to a foreigner is the rule that cars, that have been involved in an accident, must not be moved before the police has arrived and documented the damages even how small these are. For instance I saw two cars touch each other at Tigné Seafront in Sliema. It was only a small dent on one car. Both cars stopped traffic so that no vehicles could pass the place of the accident. This happened in rush hour. A motorcycle police arrived after about 10 minutes and marked the cars position by spraying marks on the road. It took about ten seconds. The queue, which was formed, probably reached St. Julians. But, of course, many young Maltese men were excited; there was a good reason to honk!




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The possibilites for a disabled person to enjoy Malta

Disabled people shall not visit Malta if they intend to see the islands and not just stay in their hotels. There is almost nothing done in Malta to help disabled people. The pavements mostly lack ramps and are far too high. The new buses are a little bit better than the old classical ones but not enough improvements have been made. When entering or leaving a bus, persons in wheelchairs cannot manage themselves but have to rely on helpful fellow passengers due to the fact that the bus is too high up from the street. That could be helped if the buses stop close to the pavements, but very often they stop one or two meters from the very high pavement.
The old classical type of bus no longer in use
There are very few shops with ramps, a fact that makes it almost impossible to visit shops if you are sitting in a wheelchair.
The pavements are, with very few exceptions, in a condition that makes it impossible to go by a wheelchair. The main exceptions in the Gzira, Sliema and S:t Julian’s area beeing, of course, The Strand and Tower Road as well as George Borg Oliver Road. In Marsaskala, Marsaxlokk and other towns by the sea with many tourists, there are also roads that are suitable for disabled people. BUT, how to get there?






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On compositionality

Jules Hedges has written a thought-provoking blog post, On compositionality where he connects the familiar idea of compositionality to the idea of emergent effects in nature, where systems can be understood as either having compositional properties or emergent properties.

The key point about emergent systems is that they are hard to understand, and this is as true for engineering as it is for science. He goes on to say "As a final thought, I claim that compositionality is extremely delicate, and that it is so powerful that it is worth going to extreme lengths to achieve it", so that avoiding emergent effects is a characteristic of good programming language design.

Some thoughts:

  1. His examples of emergent systems are biology and game theory from an economic perspective. I would add to this list physics: of his co-authored paper showing that the spectral gap is undecidable, David Pérez-García said "For example, our results show that adding even a single particle to a lump of matter, however large, could in principle dramatically change its properties."
  2. Spolsky's famous characterisation of interfaces built on shaky foundations as Leaky abstractions to me makes the distinction between compositional and emergent systems a little less than sharp.
  3. We could talk endlessly about the list of what he regards as compositionality-breaking features of PLs. The evils of global state are well-documented, but I find dmbarbour's argument that Local state is poison a very interesting alternative way to look at what properties do we want from code; more generally, what kind of compositionalty PLs offer is very much paradigm dependent. Gotos are considered harmful, but the Linux kernel has little trouble with longjmp because of its mandated coding style: compositionality in engineering is a not just a matter of semantics but also of use. He targets OO and Haskell's type classes - I think he is quite correct - note that within these paradigms one can regain compositionality by restricting to LSP or algebraic classes, and supporting his thesis we see that these ideas have spawned ideas for the design of new, cleaner PLs.




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"Three Things I Wish I Knew When I Started Designing Languages"

The transcript of Three Things I Wish I Knew When I Started Designing Languages, a talk given by Peter Alvaro somewhere or other, is up at Info Q.

Peter Alavaro's main research interest is in taming distributed systems. He starts his talk with the provocative thesis, "In the future, all radical new languages will be domain-specific languages." He talks of the evolution of his ideas about dealing with distributed systems:

  1. Little interest by designers of programming-language designers in filling huge difficulty of debugging in context of distributed systems;
  2. PLs often make handling of data somewhat implicit, even with functional programming, which he says is dangerous in distributed programming;
  3. To talk about the flow of data properly, we need to talk about time;
  4. Two things that influenced him as a grad student: Jeff Ullman's claim that encapsulation and declarativity are in tension, and Fagin's theorem (the existential fragment of second-order logic characterises NP);
  5. Idea that distributed systems can be considered as protocols specified a bit like SQL or Datalog queries;
  6. Triviality with query languages of characterising the idea of place in distributive systems: they are just another relation parameter;
  7. Describing evolution of a system in time can be done with two other things: counters and negation, leading to Bertram Ludäscher's language Statelog. But this way of doing things leads to the kind of low-level overexpressive modelling he was trying to avoid;
  8. "What is it about...protocols that they seem to require negation to express?” Turns out that if you drop negation, you characterise the protocols that deliver messages deterministically.

He summarises by saying the only good reason to design a programming language (I assume he means a radically novel language) is to shape your understanding of the problem. No regrets of being the only user of his first language, Datalist, because the point is that it shaped all his later thought in his research.




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Seven Sketches in Compositionality: An Invitation to Applied Category Theory

Seven Sketches in Compositionality: An Invitation to Applied Category Theory

2018 by Brendan Fong and David I. Spivak

Category theory is becoming a central hub for all of pure mathematics. It is unmatched in its ability to organize and layer abstractions, to find commonalities between structures of all sorts, and to facilitate communication between different mathematical communities. But it has also been branching out into science, informatics, and industry. We believe that it has the potential to be a major cohesive force in the world, building rigorous bridges between disparate worlds, both theoretical and practical. The motto at MIT is mens et manus, Latin for mind and hand. We believe that category theory—and pure math in general—has stayed in the realm of mind for too long; it is ripe to be brought to hand.
A very approachable but useful introduction to category theory. It avoids the Scylla and Charybdis of becoming incomprehensible after page 2 (as many academic texts do), and barely scratching the surface (as many popular texts do).




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Tensor Considered Harmful

Tensor Considered Harmful, by Alexander Rush

TL;DR: Despite its ubiquity in deep learning, Tensor is broken. It forces bad habits such as exposing private dimensions, broadcasting based on absolute position, and keeping type information in documentation. This post presents a proof-of-concept of an alternative approach, named tensors, with named dimensions. This change eliminates the need for indexing, dim arguments, einsum- style unpacking, and documentation-based coding. The prototype PyTorch library accompanying this blog post is available as namedtensor.

Thanks to Edward Z. Yang for pointing me to this "Considered Harmful" position paper.




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Applied Category Theory - The Emerging Science of Compositionality

An enjoyable 25-minute introductory talk: YOW! Lambda Jam 2019 - Ken Scambler - Applied Category Theory (slides)

What do programming, quantum physics, chemistry, neuroscience, systems biology, natural language parsing, causality, network theory, game theory, dynamical systems and database theory have in common?

As functional programmers, we know how useful category theory can be for our work - or perhaps how abstruse and distant it can seem. What is less well known is that applying category theory to the real world is an exciting field of study that has really taken off in just the last few years. It turns out that we share something big with other fields and industries - we want to make big things out of little things without everything going to hell! The key is compositionality, the central idea of category theory.

Previously: Seven Sketches in Compositionality: An Invitation to Applied Category Theory.

(via Brian McKenna)







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Free National Theatre: FRANKENSTEIN (Cumberbatch Version)

A new play by Nick Dear, based on the novel by Mary Shelley. Watch Danny Boyle’s monster hit Frankenstein with Benedict Cumberbatch as the creature and Jonny Lee Miller as Victor Frankenstein. Frankenstein with Benedict Cumberbatch as the creature is streaming for free from 7pm UK time on Thursday 30 April. Available on demand until […]




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The Best (and Simplest!) Writing Advice You Will Ever Receive

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Over on Facebook, Samuel R. Delany, answering a question in a post, offered the best and most succinct writing advice anyone has ever codified. Here, in its entirety, it is:

Writing advice: Read and reread. Think of a story you have never read but wish you had; then write it as carefully as you can. Finish it, and send it around till it's published.

The third sentence, as Chip noted at the time, was a condensation of advice that Robert A. Heinlein offered. So what you have above is the combined wisdom of two of the greatest careers science fiction has ever seen.

I could unpack that brief paragraph at enormous length. But, honestly, there's no need. You read it and you understood it. Now you only have to live it.


Above: The photo by James Hamilton was lifted from The Nation, where it illustrated a typically thoughtful and enlightened interview with Chip. You can find it here.


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Classifying Books: Some Early Lessons Learned

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Flushed with the feeling of success that comes from having cleaned my office to such a degree that the rugs are now visible, I thought today that I would take on the problem of excess books. Surely there are some I don't actually need. So I chose a shelf at near-random (it was one of those actually accessible without moving the boxes of books stacked before it to another location), and started going through both rows (the shelves are double-stacked, of course) to see what they contained.

Only to discover that the shelf was stocked with books placed there at seeming random. Mr. Evelyn's diary lies cheek-to-jowl with Gertrude Stein's Picasso. Jeff Danziger's Teed Tales abuts, appropriately enough, a history of Vermont. There is a collection of stories by T. Corgahesson Boyle, Zora Neale Hurston's autobiography, a novel by Sean Stewart, and a collection of essays by Ursula K. Le Guin. These last two, by the way, are misfiled since I have a science fiction section arranged almost alphabetically by author and a designated place for stacks of SF criticism and related essays. Which is where Gwyneth Jones' Joanna Russ should be as well.

Here's T. H. White's wonderful collection of mythical animals from medieval bestiaries, The Book of Beasts. The Return of Fursey! Mosses from an Old Manse. Flann O'Brien's The Best of Myles reappears from hiding; after I've obsessively reread it a few times,  I'll have to hide it somewhere else among my books, if I'm ever to read anything else. Oh, but there's also John McPhee's The Pine Barrens, which some of us persist in thinking his best book. Though it has competition. And here is a battered but charming old hardcover of Charles Fort's The Book of the Damned. I have a biography of Fort around here somewhere, though I doubt I'll find it today. Some few of these I haven't read--Fishing from Earliest Times is one example, though I'm sure I'll get to it soon. But I've read every story in The Corrector of Destinies, Melville Davidson Post's extremely odd collection of detective fiction (sort of), and I'll have to blog about it here someday.

There are thirty shelves of books on one wall of my office and my first attack upon the one provided me with nothing to cull,  And I've put aside a short stack of books to read or reacquaint myself with. Not have I done much to organize it--but wait! Here, just one shelf below is Damon Knight's Charles Fort. Up it goes, alongside The Book of the Damned, so nobody could say the last hour was wasted. Though it came close.

Nor was I able to impose a theme upon the shelf, other than Books I Am Delighted to Possess. But maybe that's enough.

In any case, it will have to do.


Above: For technical reasons, I'm having difficulty uploading a picture of the wall of books in my office. So here's a pic of part of the wall of books in my bedroom. 

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Zero Notebook 4: A Vision of God

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This is the single most important image in the Zero Notebook. As my scrawled notation says: Her first glimpse/vision of Him. It is an image of God.

At this distance, I could not say why I specified Him rather than Her, given that my fictional universe is presided over by the Goddess. Probably I didn't want that fictional level of deniability. 

Below the picture it also says:

To say that the world is a fiction
is not the same as to say it is a lie.

And to the side:

How do you describe what cannot be described?


And what, you ask, does it mean . . . ?

If I knew, I would tell you. 


Above: Fourth image. Six more to go.

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A Last Minute Ten, Nine, Eight … Point Transit Plan

The mayor's list of ideas to alleviate crowding offers little relief in the short term.

Mayor John Tory announced a ten-point plan to fight congestion and delays on the TTC at a press conference just before Toronto Council began its final debates on the 2018 budget. Through the entire budget process, starting with Tory’s cohort on the TTC Board and continuing through the City Budget and Executive committees, transit has […]

The post A Last Minute Ten, Nine, Eight … Point Transit Plan appeared first on Torontoist.




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Civic Tech: We tried to get a copy of the Sidewalk Toronto agreement

Why all the secrecy?

If you follow the news in Toronto or if you’re interested in technology, you’ve probably heard of Sidewalk Toronto by now. It’s a joint project of Sidewalk Labs, a sister company of Google, and Waterfront Toronto. This is the tech giant’s first foray into urban development and infrastructure, with Toronto hosting the pilot project. In […]

The post Civic Tech: We tried to get a copy of the Sidewalk Toronto agreement appeared first on Torontoist.




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Wisconsin asks Alvarez, Chryst, Gard to take pay cut

Wisconsin officials believe a plan of reducing compensation to highest-earning employees should help save the athletic department about $2.8 million.




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Analysis: Tennis pros' US return amid pandemic no true model

Analysis: Tennis pros' US return amid pandemic no true model




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Another day of basing

 This time I started earlier in the day while the little chap was watching TV,  rather than nod off, I thought I would activate and tackle those projects that have been waiting to be completed. The ECW regiments were long over due, time to get the Flock box out again.


 As I want these units to be nice and quick and not too taxing, I’m going for a few layers of flock to base them. Dark earth, light earth, 2mm static grass then a longer mix of 4/6mm static grass. Maybe some flower tufts thrown in here and there too. Nice and quick with no painting going on.



  • English Civil War

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Dressing the Line

 With the other two bases finished, I took the opportunity to get them all together and add some battle debris. Broken shields and weapons and spears stuck in the ground.
This warrior has thrown down his heavy shield and unslung his short bow.
 These bits and bobs help to tell little stories in each base and add to the drama. I’ve just noticed there is a spot where the ground mix didn’t get to around the feet of the Dwarf with the spear, must fix that.


 I wanted to give the impression that the shield wall was hard pressed and under a lot of pressure, I think the extra details help with that illusion. The base below is one of the new ones with a wild charge getting started.


I also added shields etc to the back ranks to fill out the bases.




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Dalek invasion

 Not happy with conquering the rest of the house, the Armoured Dalek invasion force turns its attention to the living room. Only the human Lego force of Earth stand in their way.

It was just an excuse to do some funny voices. My little boy now thinks Daleks are really funny, if only he knew.




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Mordor Shield and Banner Designs


These were gathered from everywhere from many different references. A lot of the bottom ones I created to be designs orcs themselves could have come up with, rough and crude.



  • lord Of The Rings

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Basing night!

This was the second time trying out Luke APS basing material, again I was greatly impressed. The arid grassland mix seemed perfect for American ground. On top of this I put patches of summer grass flock and then patches of mixed herbs. Mixed herbs from the kitchen cupboard act as great leaf/fern cover on the base. A nice touch is to put some around twigs so it looks like the branch has started to break down.
These are still not finished yet, later I will get my flock box out and give them clumps of 4-6mm static grass.
I have been hanging onto an old bonsai tree that died twenty years ago for the purpose of basing. Now these fantasy bases were the perfect excuse to dig it out and use it. It’s twisty roots were perfect for a good Middle Earth look.







  • lord Of The Rings

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Basing night


The results of the Dip were pleasing to look upon. I have almost doubled my Federal army in one go...result!.
These will be given some patches of 4mm grass today to finish them off.

The Regimental Fire and Fury way of generic basing is a good one. This bases will be able to represent a multitude of Union regiments. Although I have put together a hand picked group to represent the Irish Brigade, using the fantastic heads from Steve Barber models. That’s to come later, hopefully I can wizz through them with the Dip.



  • American Civil War

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Pocket-Sized #1005: “Creepiness”

Creepiness In this Pocket-Sized episode #1005, Marc Abrahams shows an unfamiliar research study to Jean Berko Gleason. Dramatic readings and reactions ensue. The research mentioned in this episode is featured in the special Psychology issue (vol. 26, #1) of the Annals of Improbable Research magazine. Remember, our Patreon donors, on most levels, get access to each podcast episode before it is made public. 1. […]




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12-Tone Music, explained without needless worship

Vi Hart, adept at mathematics, music, and explaining things, made this video that explains the point (and the lack of point, too) of 12-tone music:




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Pocket-Sized #1006: “Hot Sauce Aggression”

Hot Sauce Aggression In this Pocket-Sized episode #1006, Marc Abrahams shows an unfamiliar research study to Dany Adams. Dramatic readings and reactions ensue. The research mentioned in this episode is featured in the special Ig: the Triumph of Miss Sweetie Poo issue (Vol. 7, #1) of the Annals of Improbable Research Magazine. Remember, our Patreon donors, on most levels, get […]




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Pocket-Sized #1007: “Bereitschaftspotential”

Bereitschaftspotential In this Pocket-Sized episode #1007, Marc Abrahams shows an unfamiliar research study to Jean Berko Gleason. Dramatic readings and reactions ensue. The research mentioned in this episode is featured in the special Psychology issue (vol. 26, #1) of the Annals of Improbable Research magazine. Remember, our Patreon donors, on most levels, get access to each podcast episode before it is made public. 1. […]





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Excuse Me? Mr. Pillar? Sir?




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A Metaphor for our Television Addiction

From the submitter:

So I get up today and the kids are up before me watching TV. That's fine, it Sunday, got to sleep in, figured I go check my email and puts around online for a few. Later I go into the living room, to turn the TV so I can start watching Game highlights before the Super Bowl, but can not find the remote. I mean I searched everywhere. The usual places... In the couch cushions, under the couch, behind the couch and behind the TV.... nowhere to be found.




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Valhalla Rising movie review

About a week ago I rented this movie, now if you’ve been watching any new movies over the last couple of months you’ve probably seen the trailer for this movie. If your like me you probably thought to yourself “Hey this looks pretty sweet, it looks like there’s going to be lots of hacking and slashing and all that fun stuff”




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A basic understanding of youtube copyright

Posting videos on YouTube can be a great way to show off your video editing skills, post video blogs, or even your own mini series. Because YouTube is the largest video sharing site it’s also a great way to promote products, or your website to thousands new potential viewers. But what happens when you post a video and it’s either slapped with a copyright infringement or banned all together, and what are the consequences to your account?




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Why you should create an rss feed for your website

RSS stands for Really Simple Syndication or Rich Site Summary; it's an XML based content format for distributing things like news, headlines, content, etc. These are popular because instead of relying on them to bookmark your site and return later, their RSS reader keeps your site fresh by showing them your latest posts as a simple headline. So every time that you add content such as a blog post or article they get to see the update, plus a direct link to that post.




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Things every website should have

If you're brand new ot creating websites or blogs you may feel a little like a deer caught in the headlights of a truck when it comes to figuring out what things your site needs. There are thousands of things to choose from such as GIF files, videos, widgets, slide shows etc. But before you start getting carried away adding these things you need to add the basics, call them your core fundamentals if you will. Without these your site won't be as effective as what it could be, and won't attract the traffic that you want.




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Why your site needs a privacy policy page

Having a privacy policy for your website or blog is a way to declare to your viewers and subscribers on what happens with any information that’s collected on them, why it’s being collected, and how that information is being stored. This is a vital component to your site if your site is for business, or if you have a website that uses affiliate type advertising in order to earn revenue such as Amazon or Google Adsense. In fact not having a privacy policy will get your affiliate account banned on most sites, so apart from that and covering your back to protect yourself from legal action are good enough reasons to have privacy policy.




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How to promote your website for free

It seems there are literally thousands of sites that promise to promote your website or blog…..but for a price. The best known one is Google Adwords where you pay so many cents per click depending on the competition of the Keywords you want top rankings in. And while this will get your website to the top page in Google not everyone has the budget to fork out hundreds of dollars in advertising. But you can promote your site for free using some of these methods. Most of these are going to take time to build up before you start noticing huge amounts of traffic, but they will work if your willing to put the time in.




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What to consider to get listed on dmoz

When you submit a website to search engines, most search engines automatically crawl websites looking for links and popularity of the sites they crawl to determine how they list on search engine results, one site that doesn’t is DMOZ. Also known as the Open Directory Project or ODP, this directory is entirely monitored by people (volunteer editors), this means that you have to submit your site and wait for somebody to physically look at your site. This process can take weeks, months, or even in a few cases years, so why bother with this site at all?




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Why you should ping your website

If you’re new to websites or blogs you might not have heard of “pinging your site”. Using ping is another free seo tool in your arsenal to help get your site indexed and more traffic. Basically it works like this, a ping is basically the equiviant of you shouting at the top of your lungs “Hey over here”. It sends a notice to the search engines and directories that you have content in need of indexing, or that content has been updated.




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How to promote your website using twitter

Using twitter is a great way to promote your website or blog and increase traffic. If your new to twitter and never used it before it works like this. You get 140 characters to write a short statement or advertisement depending on what you’re using the site for. Most people tweet simple things like there not feeling well or changes in their social life. All that’s fine but you want to use it to promote your website, so here are some simple things to optimize your tweets to get the maximum traffic return.




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How To Get Website Traffic

Traffic we all want it, so how do you get it? You’ve picked your topic, and you got your site up so how do you get visitors to your site. Getting website traffic can be frustrating at the very least, a major agonizing pain at the worst. Here are some tips on how to get website traffic.




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Types Of Website Traffic

When it comes to how to get website traffic, not all traffic types are equal and hold the same value. Many who are new to websites or blogs think that all traffic is one and the same. And while the number of visits might look good you have to actually look at the numbers to see the real story behind those numbers. This is one reason why using sites like Google Analytics or other traffic stat sites is important when it comes to unstanding what kind of traffic your getting. To understand if the traffic you’re getting is good or not you have to know what types of traffic are out there, they are 1. Social Traffic 2. Paid Traffic 3. Word Of Mouth 4. Search Traffic 5. Return Traffic