http://www.ncronline.com
12. Writers Guild of America
http://www.wga.org
13. Screenwriters Resource Center
http://www.screenwriting.com
14. Creative Screenwriting
http://www.creativescreenwriting.com
15. Hollywood Scriptwriting Institute
http://www.moviewriting.com
16. Scripts-OnScreen
http://www.scripts-onscreen.com
17. Fade In
http://www.fadeinmag.com
18. Hollywood Literary Sales
http://www.hollywoodlitsales.com
19. The Writers' Computer Store
http://www.writerscomputer.com