This page is a list of cool teacher-y resources I've found thanks to posts on twitter or random internet searches.  Let me know if you find any useful!

Learning Through Gaming

SimCity - An online game that simulates the creation or changing of a city.  Several scenario options.  I'll be trying this one out with my 7th graders this school year.  I'll update my blog with how it went!

Discover Babylon - A downloadable game experience to teach students about Ancient Mesopotamia.

Immune Attack - Same group as above.  This game is about understanding viruses.

More Science Games - Here is a list of what FAS has available for online and download - all free!