Here's a whole bunch of videos illustrating some things I've seen folks not understand.  This is by no means some comprehensive training sequence, just something that might help folks understand things and techniques you could adapt to your own style and needs.   I advanced the attached file a wee bit after finishing up the videos.  My goal was to show minimal adaptation of Chief's oob annotation sets in a way that's closer to real world needs.   <a href="http://www.screencast.com/t/vicro