50 Articles to Improve your Writing
The Poynter Institute is a school for journalists, future journalists, and teachers of journalists, but even if you are not a journalist all writers/filmmakers can learn for their site. Here is a list of a 50 articles by Roy Peter Clark from the Poynter site that all writers should all read.
[...] 50 Articles to Improve your Writing (FilmmakerIQ.com) [...]
Some good content in there. Like a systematic Writers course.