Tim Heuer has been working with a team on testing out Silverlight. They created a game called Zero Gravity. It's unbelievably addictive. The music won't leave my head... <g>

Anyway, they've included support for a number of social networking sites - to help get the word out and to use some of the capabilities to improve the game. So you can add the main character (Lt. Bennett) to your Facebook friends, and follow along on his adventures using Twitter, for instance. Pretty cool.

Facebook: http://www.facebook.com/addfriend.php?id=628361728
MySpace: http://www.myspace.com/lieutenantbennett
Twitter: http://twitter.com/LtBennett
Main Site: http://zerogravity.terralever.com/
Digg It: http://digg.com/playable_web_games/Rich_Silverlight_Game_help_me_find_my_ship