A simple plugin that adds the gravatar photo associated with the user's email to their profile page... MultiSite compatable!
Set a profile picture as your wish using media upload.
Add an upload field in the user profile admin to add a custom profile picture into usermeta table.
IndiaSan User or Author Image Plugin allows your website's users to set image to their profile. This will add more fun to your website!
JSON API additional features to be used with Buddypress in addition of profile and profile photo update.