A gravatar is an image that appears beside your name when you comment on other blogs. This helps your comment stand out. This is another opportunity to brand your image on the blog of others. With a gravatar you also increase the likelihood of getting others to visit your site. Blog owners also enjoy seeing blog comments with avatars because it creates a community type of feeling in the blog.
Ok I’m sold, how do I get one? Getting one is easy. Go to gravatar.com and register for free. Upload your image (a close-up picture of your face is best) and now every time you make a blog comment and use the same email address you registered with your gravatar will show up.