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• The Age of Curiosity - A proposed update to the Drake Equation that describes why the sky isn't saturated with radio signals; suggests alien civilizations may not be curious enough to contact others.
• Alien White Paper - According to a September 2002 Roper poll, two thirds of US citizens don't believe their government is disclosing the truth about an extraterrestrial presence.
• Contact in Context - Scholarly journal for research in astroanalytical chemistry, astrobiology and SETI.
• The Extraterrestrial Sermons - Masters thesis on how the reception of extraterrestrial transmissions might affect world religions.
• How SETI Works - An encyclopedia-quality article on the science of SETI.
• Invitation to ETI - Forty scientists issue an invitation to extraterrestrial intelligence (ETI) to make contact with humankind.
• Keeney AstroResearch - Microwave and optical SETI located in the Greater Fort Wayne Area, Canada.
• The Search for Extraterrestrial Intelligence - General article about SETI.
• Searching for the Aliens - Article about the search for extraterrestrial intelligence.
• The SERENDIP Project - Information and news on the Search for Extraterrestrial Radio Emissions from Nearby Developed Intelligent Populations.
• SETI - A brief overview of the search for extraterrestrial intelligence and Frank Drake in particular. Definitions of the Drake Equation's components and a Drake Equation calculator.
• SETI Australia Centre - Educational science articles from the sky survey conducted at the Parkes radio telescope in Australia.
• SETI Institute - Conducts scientific research on life in the universe.
• SETI League - An international grass-roots organization dedicated to privatizing the search for extraterrestrial intelligence.
• Seti@home: The Star Maps - 69 full scale star maps for visual use with the seti@home screen saver.
• SetiQuest - The magazine of SETI and Bioastronomy. Provides both professional and amateur astronomers with information concerning SETI (Search for Extraterrestrial Intelligence) and bioastronomy.
• The Society for Planetary SETI Research - Organization interested in planetary anomalies that may be the result of intelligent activity. With roster and bibliography.
• Weak Interstellar Messages Pass Us By - Amateur radio project to detect signals from extraterrestrial intelligences.
• Yahoo! Groups: SETI - Chat rooms and message boards for discussions. Registration is required to post articles and see pictures.

• Pigdog Journal: Interview with SETI Astronomer Seth Shostak - A lengthy discussion with a SETI astronomer. (December 21, 2001)
• An Interview with Brian McConnell - O'Reilly interview with the author of "Beyond Contact: A Guide to SETI and Communicating with Alien Civilizations." (April 16, 2001)