Alien Observer - Report UFO Sightings, explore their huge information warehouse covering the UFO enigma. Lots of links, alien and UFO paraphernalia, discussion board.
Wyzyrd - General news and many UFO links.
UFO's and the Paranormal - UFO sightings and paranormal reports. Extensive portal to UFO and paranormal research and resources.
Sitchin Links - Library of links of Sitchin's writings and books, Mars connection, and web sites tracking UFO's.
Project-UFO Database & Search - UFO information with web search and Database of ufo sighting around the world.
Alien Press Links - UFO and alien conspiracy links.
UFOs - A compendium of independently reviewed and categorized links dealing with the UFO question, also contains editorial comment and helpful micro-essays.
UFOS/Aliens from about.com Guide - Weekly features, UFO Timeline, links, latest UFO sightings, UFO sightings database, bulletin board, and chat.
UFO Skeptic's Toolkit - Contains lots of UFO material and some newsletters.
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