Aren't we all familiar with Wikipedia? They are the world's largest encyclopedia, and they are also completely free. If you want to know the population of a country or the future film of your favourite actor, we all go to Wikipedia, the online Encyclopaedia. It will be one of the top results if you type anything into Google. Most of you are probably wondering who still uses it because we all know it's not a credible source, and even they are aware of it. They even have a Wikipedia page that cla