How to automatically grab a member's profile photo?

I know about gravatar.com, are there any other sites offering similar features?

Thanks开发者_JAVA技巧

(Answer to the question posed in the body of the post (not the subject))

You'll probably be able to find other providers of services similar to Gravatar. However, penetration is likely to be of utmost importance, i.e., you want to use whatever service most people use. And that would be Gravatar, AFAIK.

For the question posed in the title, see "Image Requests."