Most social bookmarking, social media and social networking sites allow you to include a thumbnail image (or avatar) to go with your profile. For example, when you submit a story on digg, your image appears with it.

The best example is MyBlogLog. It grew to huge success, in part because it showed people’s faces. For the first time you could see who was visiting your blog.
Most people take a thumbnail image of their face and use that as their avatar. You can see mine to the right.
But as Cheezhead points out, those images are essentially small banner advertisements for you. He provides an example on his site, where The Employment Guide uses a small logo instead of a face.
It’s a great example of trying to differentiate oneself from the crowd.
In the past, MyBlogLog allowed animated avatars, but a few months ago those were removed. They became too distracting and annoying.
But lots of people are getting creative with their avatars. And we’re seeing more people talk about standing out with unique ones.
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