Services_Gravatar is an interface to the Gravatar service.
A gravatar, or globally recognized avatar, is quite simply an avatar image that follows you from blog to blog appearing beside your name when you comment on gravatar enabled sites.
Install PEAR, fire up a console and run:
$ pear install -f http://cloud.github.com/downloads/izimobil/Services_Gravatar/Services_Gravatar-0.1.0.tgz
To uninstall Services_Gravatar just do:
$ pear uninstall Services_Gravatar
Here’s a simple example