On the off-chance that we haven’t mentioned this resource before, you definitely need to check out Lowel EDU. It’s a free collection of high-quality lighting tutorials, tips and tricks. With lighting diagrams and excellent step-by-step instructions, this is a wonderful resource that is not to be missed. The instructions obviously center around Lowel’s fixtures and products, but the lighting concepts taught transfer seamlessly to other applications. For instance, the Components of Interview Lighting tutorial is a great interactive introduction to not just the mechanics of classic three-point lighting, but the artistic reasons for this style of subject illumination. They also demonstrate simpler 1 and 2 light setups.
If you are just dipping your toes into lighting for film and video, or simply are in need of a refresher course, I recommend this site highly.