http://www.professionalphotography101.com/portrait_lighting/Portrait_lighting_diagrams.html
Broad and Short Lighting
http://www.youtube.com/watch?v=WYUYTizW6Ag
Bowens TV – Face Shaping
http://www.youtube.com/watch?v=en4Mk_jqdcQ
Adorama – Using a light meter
http://www.youtube.com/watch?v=qOxJvwcmADg