The Gravatar Plugin
Plugin Name: gravatar
Purpose: Allows use of avatars from Gravatar ( www.gravatar.com )
After installing and enabling the plugin, it is ready to use. Currently, the event owner of an event, as well as the RSVP and Comment plugins will utilize avatars from this plugin.
This plugin is new in version 3.1
Visit www.gravatar.com for more information on creating a gravatar. The e-mail address for the Joomla account and the Gravatar site must match in order for the user's gravatar to display properly.