RolePlayGateway - http://www.roleplaygateway.com - GW + AQ
Role Playing Games by RolePlayGateway ( http://www.roleplaygateway.com )
We used to be listed as "GWing" ( http://gwing.net ), but no longer are we in the database as either that or our current name, for whatever reason. We don't fit any one particular category, because of the many things that we do. For this reason, we are a bit different from other submissions. I hope this is not a problem.
We're a sort of RPG hub, but there is a huge community of players who use our forum for PbP games, and our chat for live sessions (it even supports dice
rolling 
).
A couple notes:
1) We don't validate via W3C specs. We'd love to - but the XHTML doctype isn't quite what we'd like it to be. Our pages work in all major browsers (including mobile phones...), and uses a fully fluid CSS layout that will scale to any resolution.
2) We're not sure if anyone has ever won both a Gold Wyrm and an Amber Quill award, but we're going for both. There are some horribly written play-by-post games on the forums, but there are some amazing games, such as Ghalerion.