The Thinking Writer
Arts, Writers Resources, Screenwriting - The Thinking Writer. Non-commercial website includes how-to columns, recommended reading, a creative word list, and links to daily entertainment news, current script sales, online screenplay repositories, and other screenwriter's resources.
http://thinkingwriter.com/
Virtual Script Workshop
Arts, Writers Resources, Screenwriting - Virtual Script Workshop. Listing of online internet screenwriting courses from around the globe, plus courses run in UK.
https://www.xerif.com/
Screenwriters Workshop - Euroscript
Arts, Writers Resources, Screenwriting - London Screenwriters Workshop. The UK's only charity devoted to the promotion of new screenwriters.
http://www.lsw.org.uk/