Go to gravatar.com and either log in or create a new account. Once inside, you can add as many emails as you like. Then, upload as many gravatars as you need and add one per email account. You can use the same gravatar for each account if you like.
Thanks, I’m only using it here and I don’t mind being a bit more personal with you all since we are all in this together. I dare say I will look for something more business like for when I’m out there posting professionally.
Like you say though, it’s not a priority in the grand scheme of things.