I haven't thought too deeply about if it will work on a turn based site, but Cribbage might work. And of course it's sort of a card game AND a board game. (In a way)
Nirvana: I have many games of both running, and i think they work well turn-based as long as they are coded properly. Its good on BugCafe as in Tournaments there they have a maximum of 3 days per move, no vacations, so you get no problems of never ending Tournaments
(do skréše) Dež seš napnoté(á), jak probihá tornaj, do keryhos vlitl(a), možeš ho se svéma spološpilošama okecat rovnó v "Mloveni" o toďteho tornaja. (HelenaTanein) (okázat šecke vechetávke)