There are thousands of resources available to screenwriters. But in speaking to some clients lately, who are relatively new to screenwriting, I realize these resources may be hard to find if you don't know to look for them in the first place.
Below, I've listed a sampling of my favorite sites. But the list is not comprehensive - not even close. So I encourage my readers to e-mail me other sites that they find worthwhile, and I'll add them to the list.
As a word of warning, some of the forums can contain some mean-spirited posts. However, I know a lot of wonderful, helpful writers who also visit these sites, so try to wade through the bad to find the good. I've made great friends on these forums, and I've received some really insightful advice into my own scripts along the way.
FORUMS (AND, IN SOME CASES, REVIEW SWAPS)
Theartfulwriter.com (click the link to The Artful Forum)
Onthepage.tv - My favorite analyst, Pilar Alessandra, does a weekly podcast that I highly recommend
RESEARCH- There are fees involved to use these resources.
ONLINE ACCESS TO PRODUCERS/MANAGERS/AGENTS - Please realize there are no guarantees with these services, but these are two that have been helpful to me. You do have to pay for these services.