I spotted this in a strange place, but Computer Shopper report that "psychologists have carried out studies that suggest that people are using social networking websites to develop an alternate identity, and are gradually growing into the personas they create. They explained that social networking sites are beginning to serve as a self-development tool for young people discovering their own identities."
From this I found a link to the papers from the Children's Digital Media Center at UCLA, for the academic reports behind the news.
Have a look at Jesse's diets from The Fast Show. For example: "This week I have been mostly eating roasted chickens"
Why write a blog?
This is partly a place to share blogs and posts that I've been reading elsewhere and partly an online bookmark list for my own use e.g. for the Isis project (www.comp.lancs.ac.uk/isis/)