www.cinemaretro.com - The ultimate guide to films of the 1960s and 1970s.
www.retrosellers.com - The definitive site for retro and nostalgia.
MOPO Mailing List - The first & longest-running Movie Poster Discussion Group on the Net. A fantastic service to the hobby.
The Powell & Pressburger Pages - The best Powell and Pressburger site you could possibly imagine.
Britmovie - The Home of UK Films.
The BFI - British Film Institute.
The Criterion Collection - Top-notch DVD editions of classic films.
IMDb - The Internet Movie Database.