The evolution of social media continues to warp / change and adapts to meet consumer needs. There are several good blogs that are following this ride in great detail. Originally posted via CIO Web 2.0 advisor series this article gives a good overview and links to some key blogs.
http://www.chrisbrogan.com/
http://www.allfacebook.com/
http://blogs.gartner.com/carol_rozwell/
http://smartblogs.com/socialmedia/
http://www.stoweboyd.com/
http://socialmediab2b.com/
http://socialnomics.net/
http://andrewmcafee.org/blog/
http://www.socialmedia.biz/
http://scobleizer.com/
What's social media?