Brad, I'm glad you pointed this website out. Not only is there a link for tournaments (a work in progress, apparently) but, we finally have an end all for rule discussions.
I got this off their site.
Foosball Rules
Read official Foosball game rules from the number one manufacturer of foosball tables and table games worldwide. Get a printer-friendly version below, and get the foosball fun started!
TO PLAY
1. Players can be in any position before play begins.
2. To start play, flip a coin for service and drop or place the ball in the center of the foosball table or use the ball entry ring.
3. Pass and score by pushing and pulling rods and twisting grips. Spinning of rods can be legal or illegal, depending on which you prefer. If playing teams (more than two players) once the ball is served, players may not change position on the rods until one team scores or until the ball must be served again.
4. A point is scored when the ball enters the goal. A serve, by the team previously on defense, follows each goal.
5. Teams change table sides after each game.
6. Intentional jarring or tipping of table during play is illegal (except for a dead ball).
7. Reaching into the playing area during play is illegal (except for a dead ball)
DEAD BALL
If a ball stops between two opposing players, it is put back into play by placing or dropping the ball in the center of the table. When the ball stops between players of the same team, it is put back into play by placing it in the nearest corner of the playing field and releasing it.
OUT OF PLAY
If a ball leaves the playing area during play (other than through the goals), the ball is returned to play by placing or dropping the ball in the center of the game table or using the ball entry ring.
I'm waiting anxiously for the tournaments. They better hurry though, at my age, Anheuser is a serious issue.
OK, I admit it. I'm only having some fun...