I have a new (3 months old) pool site I've created in the past 6 months of so. It's still getting alot of updates and changes, but it's pretty interesting. I have 8 ball, 9 ball and cutthroat pool so far.
Game Client: Java - no external libs, no security warnings
Game Server: C#
WebServer: Asp.net C#
Database: MSSQL 2005 (Enterprise)
Game Server did well at 200 concurrent users, although I normally never see more than 20 at a time.
Take a look if you like, and let me know what you think!www.loneaspen.com
(to avoid registration, just click on a lobby under game lobby live status)