Unknown Phenomena Investigation Association
- The Unknown Phenomena Investigation Association is based in North West UK.
- http://www.upia.co.uk

Project Blue Book Archive
- Provides researchers with free online access to over 30,000 official U.S. Government documents relating to the UFO phenomenon.
- http://www.bluebookarchive.org/

The Return to Magonia Project
- An international group of researchers compiling pre-1947 historical accounts of anomalous aerial phenomena. Presently contains over 3,000 accounts of such phenomena.
- http://anomalies.bravepages.com

Center for UFO Studies
- An international group of scientists, academics, investigators, and volunteers dedicated to the continuing examination and analysis of the UFO phenomenon. Includes articles and reports.
- http://www.cufos.org/

Friendly Alien Contact
- Send messages to friendly aliens and make the contact now.
- http://users.cybercity.dk/~bse29297/fac/fac.htm

National UFO Reporting Center
- Dedicated to the collection and dissemination of objective UFO data.
- http://www.nuforc.org

Archives for UFO Research Foundation (AFU)
- A privately founded archive and library for UFO literature, UFO data and UFO folklore. AFU collects information primarily from Sweden, Scandinavia and Europe but would accept donations and support from anywhere in the world.
- http://www.afu.info

National Coordination Committee for Study and Research Projects of the Italian Centre for UFOlogical Studies (CISU)
- For all students interested in the scientific analysis and study of UFO phenomena. [Italian/English]
- http://www.ufodatanet.org/

Adamski Foundation
- Exobiology, Astrophysical, Lunar, and UFO research.
- http://www.gafintl-adamski.com

International Center for Abduction Research
- Provides accurate, scholarly, information about the UFO abduction phenomenon.
- http://www.ufoabduction.com

UFO Disclosure
- The premier site for disclosure of the truth regarding Unidentified Flying Objects and Extraterrestrial presence.
- http://www.ufodisclosure.com

National Institute for Discovery Science
- Privately funded science institute engaged in research of ufos and related anomalous phenomena.
- http://www.nidsci.org/

S.P.A.C.E.-Search Project for Aspects of Close Encounters
- A research organization offering UFO experiencers a chance to share and further explore their experiences.
- http://community.webtv.net/HEgeln/SPACESearchProject

UFO-Sweden
- Home page for UFO-Sweden, the only Swedish UFO organization with scientific ambitions.
- http://www.ufo.se/english/

Welcome to Our Universe
- A fortnightly column published in Craccum magazine, exploring areas such as extraterrestrial intelligence, UFOs, sexual physics and claims of the paranormal.
- http://crash.ihug.co.nz/~marshall/welcome.htm

X - PPAC
- A political action committee that targets the politics of UFO/ET phenomena.
- http://www.x-ppac.org/