Have you noticed that I have a very cool avatar that shows up when I comment? That’s because I started a profile on http://en.gravatar.com/ at very neat little service, here’s the low down from the Gravatar peep’s themselves:
What is a gravatar?
A gravatar, or globally recognized avatar, is quite simply an image that follows you from site to site appearing beside your name when you do things. Avatars help identify your posts on blogs and web forums, so why not on any site?
It takes a whole two minutes to sign up, upload a picture and register your email address. Then next time you comment on a blog or site that has Gravatar service your smiling face will show up!