What are the main features of a community web site?

What would be the best set of features for a role-playing game social network web site?

• I have been thinking of developing a social network web site for table top RPG gamers and I'd like to know what features might be attractive to potential users. Also, are there any existing sites that you already use?

• Answer:

  Personally, I'd like to see: Friending etc. as you expect from social sites these days The ability to sort friends into Game Groups An online tabletop (doesn't have to be anything fancy) Access to group Wiki tools, allowing each Game Group to keep a Wiki for their games and game setting The ability to share Character Sheets or Stat Blocks. A dice-rolling and playing-card tool That's all I can think of off hand. If I think of anything else, I'll happily post an update.