Blog v Wiki

Blogs and Wiki's, though both useful web 2.0 tools have similarities but also are very different. Blogs are a more personal, where people can go and discuss a topic and comment on other blogs, where wiki's are a more structured approach at information sharing.  Also blogs do not allow for people to update or change what you wrote, they can comment on but cannot change your comments. Where as wikis can be updated and edited by users of the wiki.

Brooklyn Blog Helps Lead to Drug Raid was an example of a collaborative effort by a community in Brooklyn to get rid of a neighbor hood problem. Blogging about the crack house gave people an ability to maintain anonymity well still sharing and expressing there concerns about what they saw going on in the neighborhood. This goes to show there is a wide variety of uses for blogs.  

As far as a new use for a wiki, I believe it could be an effective tool in the financial industry. Working in the financial industry often times when people are out sick or go on vacation someone who has never performed there duties is required to do so. I think utilizing a wiki to explain how to do each specific task could be an effective way to provide an entire firm the details of each employees day to day tasks making life much easier for someone who is covering someone else.