What is a Gravatar?
What is a Gravatar? It is an image that follows you from site to site appearing beside your name when you do things like comment or post on a blog. Gravatars can help identify your posts on blogs and web forums along with tying it back to your website when you comment on other websites.
What is a Gravatar to WordPress website owners?
Watch the short video below and then go to http://gravatar.com to setup your account and associate your emails with the account.