Saw reference to this site (and GoldToken) on an ItsYourTurn users profile.
Generally I will make my move within 24 hours, but I have had computer problems in the past (and lost all the games I was playing while I was fixing the comp), so always err on the side of caution when setting game time limits - two weeks generally (also means I don't have to mess about with holiday settings unnecessarily).
(hide) Want to play more games but you're having trouble decide which game to start? Enter a tournament with random games. (pauloaguia) (show all tips)