I was surprised not to see Cranium listed on this board!
It's an awesome game, borrowing activities from Pictionary, Charades, Name That Tune, Trivial Pursuit and more. There are four card categories (Sculpting and Drawing, Trivia/Multiple Choice, Charades, and Word Games); and although there are plenty of cards that come with the game, I believe you can now buy expansion sets.
For a quicker version of Cranium, try Hoopla. It pretty much has the same categories, but the game goes much faster. I think it's just as much fun.
Cranium Web Site
Edited: Rigone on 2nd Nov, 2005 - 4:16pm
I enjoy cranium, especially the acting and art cards. But for some reason it seems like my family gets tired of it fast, I dont' know why.
Another fun cranium game is Whoonu. It is a game where each player has to guess from a limited selection of things which would be a certain player's favorite. The one player then ranks each selection, and the players that guessed get points based on the rank of their guess. it is funny to see what people guess!
I really enjoyed Cranium, particularly the yellow word-game section of it, but it seems like you never have enough cards. It's a game where you learn all the answers too quickly, and I think it would be better if there more questions. It was a lot of fun, though.