Boardgameplayer.com - Plays card and board games. Includes a news archive. - http://www.boardgameplayer.com/
AccessDenied.Net Gamer Database - Searchable database, with entries from all over the world. Covers computer PBEM, computer network, board games, roleplaying games. - http://www.accessdenied.net/database.htm
Steve Jackson Games: Gamer and Store Finder - Searchable database, with entries from all over the world. Contains information on games played (board games and roleplaying games, from SJG only). Registration available. - http://www.sjgames.com/gamerfinder/
B.Y.O.V. - International group, based in Wisconsin, US. Includes list of scheduled convention events. - http://www.byov.com/