Using other balls
This tutorial is good for both Yahoo! Pool and real pool games.
You will face with positions that you don't have a shot, well sometimes there are shots that you can't see at that moment. You can use one of your ball or opponents ball to pot your balls or while you pot your ball you can clear around your other balls to get a shot on them at your next shots.
This video tutorial is all about to show you that you have actually have a shot when it seems you have no shots. If you can't see all of the options you have before a shot it may cost you a lose :(