Graviton High, my old website. via the Wayback Machine.
Discotek Media, current U.S. licensee of Project A-ko
Project A-ko Fanclub on Facebook (membership restricted)
Project A-ko on Anime News Network
Joe Bob Briggs, King of the Drive-in, reviews Project A-ko
lamonae, a fansub group that specializes in the Cream Lemon series. NSFW!
Crunchyroll article on the finding and restoration of the first movie