A gravatar, or globally recognized avatar, is an image that follows you from blog to blog, appearing beside your name when you comment on gravatar-enabled sites.
You can see them in action here on posts that have comments. Sign up here to get your own gravatar.
Yesterday I installed a new WordPress plugin, aptly called Easy Gravatars, which makes the service simple to install on any WordPress site.
The previous plugin enabled special coding of the comments template file.
I also updated the generic image for non-gravatar users, so it’s no longer a sheep!