His site [http://www.theoryoffun.com/ http://www.theoryoffun.com/] includes the slides from a presentation on game grammar [http://www.theoryoffun.com/gdc2005.s

His site [http://www.theoryoffun.com/ http://www.theoryoffun.com/] includes the slides from a presentation on game grammar [http://www.theoryoffun.com/gdc2005.shtml http://www.theoryoffun.com/gdc2005.shtml] that lists boatloads of academic work, which is really what I was looking for - thanks!