Blog v. Wiki

The difference between a blog and a wiki to me would be that a blog is more of a personal place to write anything you want.  You are the sole author of your own posts.  Where as a wiki is more of an informational place to write things about particular topics.  Also all of the information within the wiki can be edited.  Wiki's are a lot of the times anonymous.  Blog's are where people go to relate and have conversations.  Wiki's are where people go to find specific information. 
The similarity between a wiki and a blog is that anyone can have one, on both you can put the information you want, whether is be false or true.  That is up to the reader to perform proper research to make sure all the information being read is true.
Convergence in today's networked world is extremely important.  In many of the big business' or corporations there are multiple owners, because multiple people had different ideas and knowledge and when putting that together in a broader idea success is evident.
Blogs can be used for collaboration because if someone is blogging about a particular idea or feeling they have on some topic, a reader may come a long and relate with that.  Together they may come up with an amazing idea, just from the dedication that they both have towards a similar idea.  Ayn Rand is an example of this idea from the reading:  Wal-Mart Tastemakers Write a Blunt and Unfiltered Blog, NY Times, march 3, 2008, p. C1, at: http://www.nytimes.com/2008/03/03/business/03walmart.html. 
A new way I think a wiki could be used would be an online for the people newspaper.  Every day people could get articles from real newspapers, write a synopsis on it and organize information on the story to voice their opinions, and ways they can fix the problem if possible.  This idea came to me when reading this article:  Wiki While You Work; The technology popularized by Wikipedia can help companies gather and manage their own collective knowledge. Here's how to get started by Margaret Locher. CIO, May 1, 2008. Vol. 21, Iss. 14. Available at: http://www.cio.com/article/336818/More_on_How_to_Build_Your_Own_Wikipedia.