| The W-Files Documents UFO sightings and abductions in the state of Wisconsin. Also covers a variety of other paranormal incidents. | |
| Varginha ET Case - The Whole Story Detailed information about the Varginha UFO incident. | |
| UFO2U Features alien conversations with a weekly Q&A forum, submitted paranormal stories, author Heidi Hollis, UFO2U group, and a unique alien gallery. | |
| UFOs: State of the Evidence 2000 On-line article concerning the present juncture of the ufology v. Hard-science conflict of the last 50+ years. | |
| UFO's Evidence? UFO, Cydonia, opinion & link page for the serious researcher. | |
| UFOs and the National Security State An Unclassified History. Volume One, 1941 to 1973. This is a thorough historical analysis of the national security dimensions of the UFO phenomenon. | |
| UFO-Norge Provides information about UFO-related incidents. | |
| Ufology UK Latest news, theories, articles, community, games, documents, history, and news. | |
| UFOLOGY: An Informative Approach History of UFO encounters, aliens on Earth, Roswell crash. In-depth articles on UFO personalities and abductees. | |
| UFOINFO Providing information regarding a wide range of UFO topics, an assortment of bulletins, links to organisations, magazines and a site search engine. | |
| The UFO that Crashed in Wales An account of the UFO that allegedly crashed into the Berwyn Mountains in Wales in 1974. | |
| UFO Software Research Project. This software leads the user from the beginnings of UFO research up to the present day events including UFO's all important role in the United Nations and the New World Order. | |
| UFO Skeptic An information site on the UFO phenomenon by and for professional scientists. | |
| UFO Resource Center UFO research community with open forum to report a UFO, study UFO case reports of extraterrestrial contact and military cover-ups. Membership grants access to their restricted files. | |
| The UFO Page A rational look at UFOlogy. The ongoing TUFOP Abduction survey is a multi-year survey trying to identify commonalities within the aline abduction experience. | |
| UFO Online Italian and English site, international UFO information. | |
| UFO Infosite Information on UFO's, space and NASA. | |
| UFO Info Provides information regarding UFOs, Aliens and the Conspiracy theory. | |
| UFO Folklore! A huge amount of UFO related information. | |
| UFO Evidence In-depth, quality and scientific research on the UFO phenomenon. | |
