Film Underground a.k.a. Cyber Film School

I'm not exactly sure which name they prefer but that doesn't really matter because they have many articles on their site that should be of great help to aspiring filmmakers and writers.

Their main website is here.

Here's a sampling of some of their articles:

Budgeting an indie film
resolving audio
Film Camera for Shorts
music copyright I
treatment format
Adapt and Overcome
Agent's and Manager's Needs