Question #1:
WHAT IS A WIKI....?
Answer:
From what Nations (2013) says, A wiki is basically a content management system. Weather it is by one person or multiple people. Everyday people look at information and know maybe a little more about the subject. They will then add their spin or maybe their insight on the subject to make the reader to be able to better understand what they are looking at. A wiki might not always be 100% truth or factual. Wikipedia is the best example for this. Anybody can add information to wikipedia regardless if it is factual or just an opinion. People will sometimes get themselves in a predicament by believing everything they read. Without doing proper research and looking infromation up, people will just go to the internet, find what they think is the answer and then go with that. I always recommend getting facts and going to a source that is fact based and not able to be changed or be opinionated.

References
Nations, D. (2013) What is a Wiki. Retrieved from, http://webtrends.about.com/od/wiki/a/what_is_a _wiki

Question #2:
HOW DOES A WIKI FIT INTO WEB 2.0...?
Answer:
Because a wiki is a collaboration of ideas or thoughts, It fits perfectly into WEB 2.0. Since WEB 2.0 offers the ability for one user to respond to anothers post, comments, pictures or blogs just to name a few, Wiki's allow other users across the globe to add data or information without actully changing the content that was already there. Once again though, the problems with wiki's is the concern that unless you do a little research you can not always trust what is actually typed in a column or journal somewhere.