The social game roundup
As web technology improves, games are spreading into places you'd expect, as well as places you wouldn't. Facebook is practically a console, the definition of MMOG is changing and Raph Koster's Metaplace may very well turn everything on the web into a play space.
Tadgh Kelly at Simple Lifeforms was good enough to take inventory of the social games enjoying popularity today. He breaks the scene into eight categories:
Social RPGs
Sports RPGs
Casual games
Word games
Virtual villages, or mini virtual worlds
Casino games
Just for laughs, or silly games like the versus games on Facebook
Ownership games
Kelly provides a bunch of examples for each category, and definitely makes for good reading, especially as the media through which games can be played evolve.