I'm not certain if there exist a community interested in the educational aspects of gaming with students. I recently participated in a session with Ewan McIntosh about the possibilities of using gaming with students and wondered if there were any educators interested in the same topic. I've put together a wiki Gaming in Education
to encourage collaboration on the topic if anyone is interested. You'll find the links and articles that were discussed at the session and a few others that I discovered in my own research of the topic.
Literacy with ICT - IMYM Tutorials Blog
Literacy with ICT - IMYM Tutorials Wiki