Developer of learning systems and online communities.
I have been contributing to Moodle since 2003.
You can take a look at my Profile at http://moodle.org.
Anyway, I have a more relevant profile in my social network at http://eduspaces.net/davidds (I am working on both Elgg and Moodle as tools to develop online learning communities).
By the way, I have been also contributing to the Wikipedia since 2003. You can take a look at my profile at Wikipedia, if you want.