Check+this+out

Hello, everybody; I was unclear about what a wiki was and is, and then I saw this video on YouTube: http://www.youtube.com/watch?v=-dnL00TdmLY It's called "Wiki in plain English" Right, YouTube is blocked at school, so check it out from home or the library or wherever. Just copy and paste the address. I really like this video because it explains something really simply and clearly, and it is also creative and effective without being expensive.