Nomic Bulletin Board: A forum for discussing nomic topics, along with announcing and finding new and existing games.
Nomic.Net: A collection of links, information, scripts for game automation, and games.
The Curvature of the Earth is Overwhelmed by Local Noise Nomic: An imperial-style nomic. List of rules, past moves, and a game board.
Unplugged Nomic: Second version of this nomic. The entire history of the first one is on the site.
Utopia: Has its own discussion and judgement message forum. Rules and current players.