Elgg/gravatar — pull request #2 by sembrestels (2013-05-11 19:52:16+00:00)
Title: Added libravatar support.

Libravatar is a federated avatar hosting service based on open source. It is compatible with gravatar, so it also fetch gravatars. Platforms like launchpad, gitorious and ohloh are using it.

http://wiki.libravatar.org/description/