Gravatar is a free online service that lets you set a “universal” profile image for yourself online. It will show up when a website has Gravatar enabled and when you post something using your email address associated with your Gravatar account. It automatically recognizes you and displays your profile image on the site with your content. There are other uses as well, but here is a short list of where your Gravatar image might show up:

  1. Your WordPress Blog. When you post and comment.
  2. Comments you leave on other people’s websites.
  3. Your private account with a business or service.
  4. Your public profile with a business or service.