Ever noticed how when you published a post (you have published something, right?), a thumbnail and mini-bio of you, the author, shows up under the post? That happens either manually (which is not all that easy) or more automatically using a Gravatar. A what-a-tar? You mean blue aliens versions of my persona? Slow down, partner, it’s just a thumbnail photo that will be used in a variety of places on a variety of websites–including this one. Want to get your own Gravatar? Here’s how.