(Globally Recognized Avatar)

Your Gravatar is the image that follows you from site to site, appears next to your name when you post comments or post a blog. Avatar will help identify your posts on blogs and web forums, and even any site as it is not necessary to have an account (profile) there. All you have to do is register your e-mail at Gravatar database so you can easily change your picture at all positions in all sites simultaneously with only one change at Gravatar.

The site of Gravatar is www.gravatar.com