Go to this site http://www.flexbandtraining.com/, and check out their training library. These are geared towards jumpstretch/ironwoody/superbands type of bands. However, its all adaptable to some degree.
Also, check out a cheesy site affiliated with bodylastics...http://leeapperson.com/cables/
There is not too many full blown workout sites. Most people combine elastic/band training with either weight training or bodyweight training or both. You will have to design your own routines.
I have a set of TNT cables from Lifeline, and the workout pamphlet you get with the TNT cables is bodybuilding movement oriented (worthless). I bought them with the recent sale, so you get three sets of different resistance levels for the price of one. Yesterday's conditioning workout was tabata based: dumbell swings, barbell thrusters, TNT cable rows, TNT cable presses, and sledghammer tire strikes.
Experiment, find what works for you and what you need, then create your own routines...