I'm trying to get into dominion but I don't understand it. From what I've read winning the first fight at top and winning bottom lane help you win. But what else causes you to win?

What is the basic strategy?

What are common noob mistakes?

Capping and holding at least three points is the main goal.

The bottom lane is often just as important as the WindMill and having someone who knows how to deal with it is primordial

http://na.leagueoflegends.com/board/showthread.php?t=1542859

Well one of the most common mistakes is when the entire team rushes together, well atleast when the other team either has the ability or strength edge. The fact of the matter is, you NEED to cap. If you run as a team, chances are you will lose. Since they can just cap 3-4 points to your one, and focus their attention as a whole on that one point or the team.

Best strategy to use is to cap three points and defend, Top, Bottom, and Your side Mid. People tend to get bored with that strategy, so prepare yourself to be running all over the place, picking up after their messes.