What is a Gravatar? Gravatar (an abbreviation for globally recognized avatar) is a service for providing globally-unique avatars which was created by Tom Werner. en.wikipedia.org/wiki/Gravatar. Having your own Gravatar allows your photo to show on your own Blog posts as well as those of the other sites and Blogs that you leave comments on. If a site is set to use gravatars and you do not have one setup, instead of your cute mug, those viewing your comments will see [...]