Eyespider’s Space 1999 Page – This site includes an episode guide and the author’s personal thoughts on the show.
John Kenneth Muir’s Space 1999 Page – “Words form the man who wrote a reference book Exploring Space:1999 in 1994-1995.
Mike Comb’s Space 1999 Page - Photos, movies and some neat wall papers. Turn your computer into a Space 1999 Shrine.
Space 1999 Memorabilia – A really neat collection of Space 1999 Toys.
Space:1999.net – A site dedicated to preserving that glory that is Space:1999.
Space 1999 on allscifi.com – A detailed site with tons of information including fan fiction.
Space 1999 On Bad Astronomy – Mad science, fun stuff, and a whole lot more.
space1999.org – This site has FAQs, features, discussions, and a neat Gallery.
The Space 1999 Logbook – This site has a very detailed episode guide as well as a ways to get a hold of some Space 1999 toys!
UFO & Space 1999 Timeline – A very neat and very detailed Timeline for the television series.