Blog Vs. Wiki

Blogs and Wikis are similar in the fact that they both have peoples opinions. Blogs are usually created by one author, whereas wikis have multiple people commenting their varying opinions. Wikis tend to grow faster than blogs just because they have a lot more sources and comments. Comments on a blog must be approved by the author, but anyone can say whatever they want on a wiki. 

Blogs can be very helpful in solving unseen mysteries. As seen in the New York Times, a blog helped lead to a drug raid. Additionally, blogs helped obtain information about Afganastan in 2009, which was extremely helpful (NY Times). They are a great way to keep us updated about the current news in a more interesting format than just watching it on television.