I am pretty sure I have a strong visual tendency and I feel that graphics enhance my blog posts by creating visual interest. I get excited by some of the silly visuals and some of the interesting graphic representations I have found online.
Robohash generates robots using your IP address:
Middle School Teacher Librarian and lifelong learner.
Voki.com creates avatars that say whatever you like. Students love to create these avatars to add to their wiki projects.