I have found this site to be a great resource for inspiration on new variations to my workout. I pick up at least one new exercise to try each time. What i would find useful is a directory by target body-part of all the exercises that people have developed (preferably with links to pictures or video). Is there such a thing already? Can we get it started on here if there isn't?

 http://www.fitnessanywhere.com/resources/exercisesdb.php

I've seen the video library.. thanks. but there doesn't seem to be any order/structure to the way the videos are organized. I was thinking more along the lines of a listing per body part that could then link to that video

If/when you go to the instructor course the manual you get does have an incomplete list of exercises organized by Legs, Core, Upper Body. Then it has a section of stretches