Army Marksmanship Unit has been producing videos titled "Shooter's Corner", giving tips on shooting. It is basic information, but proper execution of basic skills is what makes experts.
Part 1: https://www.youtube.com/watch?v=4xUSEfB3LlQ
More videos below
Part 2: https://www.youtube.com/watch?v=cT1C80ThoEo
Part 3: https://www.youtube.com/watch?v=_6x1cLByjgw
Part 4: https://www.youtube.com/watch?v=ygeZgrrb1M8
Part 5: https://www.youtube.com/watch?v=S2SL5ltF_9g
From: BenningTV via Guns.com