Smart Football - Understanding coverages and attacking them with passing game

I find myself more and more interested in understanding the X's and O's of football strategy and the play-by-play articles posted on MGoBlog, but have had a hard time understanding all of the terminology.....this is a great article by Chris Brown at SmartFootball.com that helps a great deal. http://smartfootball.com/passing/attacking-coverages-in-the-passing-game