http://www.traderauctiongames.com/index.jsp
This is going to be a very unique site. They are only in test mode. But this looks to be a site with a lot of potential. Check out games they are developing. usually have a new one come in every week. As we all know this takes money and time to build.
Be one of the first to join. Looking for linking sites right now.
Check it out.
I do not own this site, I am only a member, but I do see its potentiaL.
Read all about what is going to happen and check out the new games that are coming also. This is going to be NEAT