Most of the people who comment on here have done this, but a few haven’t, so I thought I’d remind people:
If you want your avatar to show up on wordpress blogs, nine times out of ten what you need is a gravatar account. It connnects your email address (hidden from viewers) with an avatar of your choice. As on other online networks you should use an image that is recognizable – either your brand, or a photograph.
This works for all WordPress blogs: self hosted or not. You can, if you insist, use different email addresses and connect them to different ID’s and online profiles.

{ 4 comments… read them below or add one }
I can’t remember if I have done that, so this comment should let me know! Thank you!
I Thinks I do have a gravatar, I need to check. All I know is that I never used it yet. Between the blogger account, FB, Twitter and WP I guess it could ease tings up using gravatar for everything. I’m just not too sure about having them knowing all my accounts…do I sound paranoiac?
I am very pleased to see that you are posting more. Your insights are very helpful. And yes it is best to post with a head shot, but I only have a mug shot.
However, since you have a Squidoo avatar, why not use that?