Here are some links to some basic exercises for your back.
Exercises for general spine health: http://www.undulationexercise.com/bodyworkers/all_general_spine.pdf
Excercises for the low back and sacrum: http://www.undulationexercise.com/bodyworkers/all_sacrum_lower_back.pdf
Exercises for the shoulders and neck: http://www.undulationexercise.com/bodyworkers/all_neck_n_upper_back.pdf