No Film School is a good resource for news, tutorials, interviews, and gear reviews of interest to independent film/video makers.
DVInfo.net Forums is one of the best online discussion forums for finding answers to video production related questions.
Lowel EDU provides an excellent introduction to lighting fundamentals, equipment, and creative possibilities along with a collection of real-world setups along with a step by step description.
If you have suggestions for additional resources that should be on this list, please contact me.