Some free bodybuilding resources and articles:

Build Muscles Fast

The sport of body building has grown steadily in popularity over the years. From its heyday in the 1970’s to now, technological advances as well as nutritional advances have made body building a sport that focuses on the art of the human body and what is possible when it is pushed.

Diet For Building Muscles

In body building, your diet is one of the most effective weapons you can have if you want to achieve maximum potential. Diet is so important to the body builder as it not only supplies the body with the energy needed to perform your exercises as well as giving you the nutrients you need to maintain a healthy lifestyle.

Why muscle stops building when it's working

http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1464217

Bodybuilding is the process of maximizing muscle hypertrophy. Someone who engages in this activity is referred to as a bodybuilder. In competitive bodybuilding, bodybuilders display their physiques to a panel of judges, who assign points based on their aesthetic appearance.

http://en.wikipedia.org/wiki/Bodybuilding