Here are some links that others have found helpful
The Soccer Tutor™ Dedicated to promoting a better understanding of the game by teaching the Laws of the Game to: Referees, Coaches, Players, and Spectators
Explanation of the Offside law
The link below is to a clip that gives an excellent presentation of the offside rule.
It has one error in that it states "when the ball is kicked"....instead it should state "when the ball is played" because a player can be in violation of the offside law if a player heads it to him/her or even if it accidentally bounces off a teammate, not just when it is kicked click here for video cilp
