For those of you looking for a bit more information of a more scholarly nature here are some internet resources you could check out:

Wikipedia– A very good place to start

Lotsawa House– A number of Gesar Practices and other information

Himalayan Art- Both images and information about Gesar and the Epic.

A Short Video (4minutes) about the Epic by Sangye Khandro, an American born translator and teacher of Tibetan Buddhism

Tibetan Buddhism and The Epic of Gesar by George Soloman. A detailed discussion of this occasionally complex relationship.