I started a bowling game, and I'm trying to join a good 3-4 games so I can see the way of the road here.  Help me out!

Cheers

Depends on who you talk to, but I really like vertigo for 4 player games.

Call me bias but I really like Die Emoticons, DIE as a simple to play and fun 3-4 person map. I am also a big fan of Pipe Dreams although the modifiers make it a little bit more advanced. Oh, Rent is Due Again is always a good time and if you really want to try out some of the features play a game of castles with any amount of players. It's a great map.
For basic run of the mill play to get you used to the site and the UI Mars isn't the prettiest map but it plays well and I love it with 3 players. Mobs of New York is classic fun, Fallout is a little advanced and complex but once you get it it's great. Zombie America is quickly becoming a fav of mine but nothing, and I mean nothing, beats a good game of Count Risky Must Die! It's like the remake of Clash of the Titans except it doesn't suck!
P.s. Yeah, I'm bias but I almost suggested Risk-E-Vaders just to be a prick (don't play that one, it's not fun).

I concur on Rent is due, Castles, Mobs, and Count Risky. Fallout is a classic, but a bit advanced, and Zombies of America was good fun.

Thanks folks, I'll jump on as many of these recommendations as I can