"My avatars online persona started with an email address. This way I could separate SL related, avatar specific, mail from other day to day RL stuff. These days such things can be acquired in just a few minutes for free. Then I thought it would be fun to tell people about my adventures in SL, so I bought a website domain for a blog, although I didn’t start using it for quite some time. When I actually started using that, a Twitter account to promote it followed  as well as a Flickr account for photos I took inworld." Read more on the blog.