I GM:
GURPS Cabal - bi-weekly (Thursday), 18:30-23:30
GURPS Fantasy - bi-weekly (Saturday or Friday) 14:30-2:00
GURPS Bronzepunk - every 6-8 weeks (Friday, Saturday or Sunday) about 9-11 hours per session
I play:
D&D3e Mystara - monthly (Saturday) 14:30-3:30 (Saturday, on average)
I plan to GM:
two other GURPS campaigns on a bi- or tri-weekly basis.
Age of players/GM: 19-35