There are an endless supply of articles, books, studies, stories, and blogs providing fitness information. It’s hard to know what to trust. https://www.youtube.com/watch?v=kFBDn5PiL00
The best sources of information in my opinion, and science’s opinon http://www.ehow.com/about_6137969_importance-scientific-research.html
Treat Your Own Rotator Cuff
By Jim Johnson, PT
Training for Mass Second Edition
By Gordon LaVelle
Nutrient Timing
The Future of Sports Nutrition
By John Ivy, Ph.D., & Robert Portman, Ph.D.
Strength Training Anatomy Third Edition
By Frederic Delavier