See also:

• Science: Anomalies and Alternative Science  (472)
• Science: Astronomy: Extraterrestrial Life  (122)
• Science: Science in Society: Skeptical Inquiry  (156)
• Society: Issues: Conspiracy  (142)

This category in other languages:
	Chinese Simplified  (4)   Danish  (3)   Dutch  (5)   French  (18)   German  (10)   Italian  (20)   Japanese  (8)   Lithuanian  (3)   Polish  (4)   Portuguese  (46)   Romanian  (5)   Russian  (23)   Spanish  (37)   Swedish  (4)

• AlienZoo   - Offers news on UFOs and space, MP3 music, intergalactic downloads, e-mail, chat, and Web search.
• The Black Vault   - Large UFO site, with features including scanned pages of official government documents obtained through the Freedom of Information Act, court documents, information on viewing UFO's, and a discussion board.

• Alien Enigma - Offers exchange between people who have UFO experience. Includes, how to tell if you are an abductee, personal accounts, pictures and links.
• Alien UFOs - Message board encourages discussion of aliens and UFOs, including contact. Also crop circles, cryptozoology, UFOs in relation to religion.
• AlienExistence.com - UK UFO resource running petition to uncover facts regarding UFO's and alien visitation.
• Aliens and UFOs Among Us - Reasons why alien visitations are thought to exist, from ancient history to the present.
• Aliens the Truth - UFO resource site.
• Alien-UK - United Kingdom UFO and alien conspiracies.
• Amateur Radio Unidentified Flying Object Net - Offers information and links on ufos and ham radio.
• Cosmic Conspiracies - Over 100 pages on UFOs.
• Destination: Space - An active exploration of astronomical and aeronautical advances, the ongoing intrigue behind the UFO enigma and a view towards the reality behind science fiction.
• Extra-Terrestrial Contact - A scientific overview of the UFO phenomenon.
• FBI - Freedom of Information Act - Unidentified Flying Objects - Declassified UFO documents from the FBI.
• First Encounter - Ancient and modern encounters with extraterrestrials.
• General Protocol (for) Human/Alien Contact - This is a general, formalized protocol containing: vital assessments for all future Human/Alien encounters. Printed manual version available.
• HowStuffWorks: How Aliens Might Work - Illustrated article examines astrobiology, the scientific search for extraterrestrial life.
• Moon Fossil - Evidence of fossil life on moon. Invertebrate fossil discovered by Apollo 17 astronauts.
• Path to the Source - The purpose of this site is to present extra-terrestrial contact experiences, e.t. philosophy, missing time and para-normal experiences.
• The Project At Earth - Learn about the true nature of universal life, including our own. The Project At Earth is the organization of all of Earth's Visiting Life.
• South Africa's UFO Resource - Collection of information related to UFO`s, for example: top secret files, implicated officials, downed and/or recovered craft, military and government involvement, specifically in South Africa
• The South Australian UFO Mystery Site - Detailed examination with very large pictures of a UFO and its probe, sighted early one morning in South Australia.
• Think About It - A place to think.
• UFO Area - Offers information about UFOs, ancient astronauts, crashes and sightings, flying triangles, and Puerto Rico.
• UFO Documents Index - National Security Agency released UFO documents in PDF format..
• UFO Evidence - In-depth, quality and scientific research on the UFO phenomenon.
• UFO Folklore! - A huge amount of UFO related information.
• UFO Infosite - Information on UFO's, space and NASA.
• UFO Online - Italian and English site, international UFO information.
• UFO Resource Center - Offer photos, video clips, image analysis, research, discussion forum and documents on UFO sightings and extraterrestrial aliens.
• UFO Skeptic - An information site on the UFO phenomenon by and for professional scientists.
• The UFO that Crashed in Wales - An account of the UFO that allegedly crashed into the Berwyn Mountains in Wales in 1974.
• UFOINFO - Providing information regarding a wide range of UFO topics, an assortment of bulletins, links to organisations, magazines and a site search engine.
• UFOLOGY: An Informative Approach - History of UFO encounters, aliens on Earth, Roswell crash. In-depth articles on UFO personalities and abductees.
• Ufology UK - Latest news, theories, articles, community, games, documents, history, and news.
• UFO-Norge - Provides information about UFO-related incidents.
• 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's Evidence? - UFO, Cydonia, opinion and link page for the serious researcher.
• UFOs in the Media - An essay on the modern history of UFOs in the media.
• 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.
• UFO2U - Features alien conversations with a weekly questions and answers forum, submitted paranormal stories, author Heidi Hollis, UFO2U group, and a unique alien gallery.
• Varginha ET Case - The Whole Story - Detailed information about the Varginha UFO incident.
• The W-Files - Documents UFO sightings and abductions in the state of Wisconsin. Also covers a variety of other paranormal incidents.