What are good table top games for six or more people?
I get together with a group of friends to play table top games (board, card, etc) a couple of times a month. We try to invite different people to play with us each time, which often brings us to six or more people. If we have six or less, we like Munchkin, Settlers of Catan and Guillotine. For three or four we like Gloom, Quirkle, Ticket to Ride and Pirate's Cove. We've played Cranium, Scattegories and Creationary with larger groups but are having trouble finding other, similar games that accommodate that many people.
What games do you recommend for at least six people, but particularly for more than six?