Chess
I enjoying playing chess and chess variants at SchemingMind, a wonderful Correspondance Chess site. My handle there is surfnsuds - send me a challenge!
I've invented a variant called Full House, and co-invented the popular Chicken Chess. Both are available at SchemingMind and are listed at ChessVariants (Full House, Chicken Chess.) Java-enabled browsers can try out these games (and many more!) at Pathguy (Full House, Chicken Chess).