you can join the DHLC group and participate in live slow events. It's just great: http://www.chess.com/groups/home/dan-heisman-learning-center
You can also publish your seeks in the note section of this group that has gathered specifically for that purpose: http://www.chess.com/groups/home/world-standard-time-control-chess-club-365-days-a-year
Why are so few seeking long games?
I like to use chess.com for training for OTB tournaments with 60 min games. But as I climb the ratings (even at my humble level) I find it hard to get opponents.
Why is that?