BodyMorphosis

Learn how to dead lift using proper form with step by step instructions and slow motion demonstrations. The Dead Lift is the best overall mass building weight lifting exercise. Be sure to always use correct technique and form for heavy dead lifting in the gym and in the real world.

Trainer Jai demonstrates proper form and technique for variations of the Superman exercise. This exercise works the lower back and glutes and is great for addressing lower back pain.

http://AskTheTrainer.com/best-chest-exercises.html
Personal Trainer Michael Behnken, MS, NASM-CPT-PES, CSCS
Retraction allows you to work the most muscle fibers in the chest. If you cannot retract your shoulder blades due to bad posture, you must strengthen the muscles that do so.
This means you need to perform rowing exercises with proper form and stretch your chest and anterior deltoids [...]