SETI (pronounced ) is the acronym for Search for Extra-Terrestrial Intelligence, organized efforts by humans to detect intelligent aliens. A number of efforts with "SETI" in the project name have been organized, including projects funded by the United States Government. The generic approach of SETI projects is to survey the sky to detect the existence of transmissions from a civilization on a distant planet - an approach widely endorsed by the scientific community as hard science.
There are great challenges in searching across the sky to detect a first transmission that can be characterised as intelligent, since its direction, spectrum and method of communication are all unknown beforehand. SETI projects necessarily make assumptions to narrow the search, and thus no exhaustive search has so far been conducted.
More on [ SETI ]

An Interview with Brian McConnell - O'Reilly interview with the author of Beyond Contact: A Guide to SETI and Communicating with Alien Civilizations.
Meta Description: [ O'Reilly interviews Brian McConnell, author of Beyond Contact: A Guide to SETI and Communicating with Alien Civilizations. By Brian McConnell, author of O'Reilly's Beyond Contact: A Guide to SETI and Communicating with Alien Civilizations (March 2001... ]
Contact in Context - Scholarly journal for research in astroanalytical chemistry, astrobiology and SETI.
Meta Description: [ Contact In Context is a peer-reviewed, web-based, academic journal. Since 2002 the journal has served as a scientific forum for research in astrobiology and the search for intelligent life in the universe. The SETI League, Inc. is a membership-supported, nonprofit {501(c)(3)} educational and scie... ]
How SETI Works - An encyclopedia-quality article on the science of SETI.
Meta Description: [ SETI is the Search for Extraterrestrial Intelligence, and its dedicated to discovering signals sent to Earth from far, far away. Find out what would happen if an extraterrestrial were to make contact. ]
Invitation to ETI - Forty scientists issue an invitation to extraterrestrial intelligence (ETI) to make contact with humankind.
Meta Description: [ Invitation to ETI is a web-based scientific Search for Extra-Terrestrial Intelligence (SETI) experiment, inviting intelligent extraterrestrials to establish a dialog with humanity. The Invitation is issued by a multi-disciplinary group of nearly 100 scholars from around the world. ]
Pigdog Journal: Interview with SETI Astronomer Seth Shostak - A lengthy discussion with a SETI astronomer.
Meta Description: [ SETI ]
Searching for the Aliens - Article about the search for extraterrestrial intelligence.
Meta Description: [ Science popularization article about the
search for extraterrestrial intelligence ]
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.
Meta Description: [ The SETI League, Inc. is a membership-supported, nonprofit {501(c)(3)} educational and scientific organization, devoted to privatizing the electromagnetic Search for Extra-Terrestrial Intelligence. ]
Seti@home: The Star Maps - 69 full scale star maps for visual use with the seti@home screen saver.
Meta Description: [ The SETI@HOME: THE STAR MAPS site was designed to provide 68 full scale star maps to members of Team Art Bell. All maps can be used to visually locate areas in the night sky in relationship to the Data Info provided by Seti@home. Not only can you watch the graphics of the data being proccessed, b... ]
SetiQuest - The magazine of SETI and Bioastronomy. Provides both professional and amateur astronomers with information concerning SETI (Search for Extraterrestrial Intelligence) and bioastronomy.
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Signal vs. Noise - What sort of signal would satisfactorily announce an extraterrestrial intelligence as detected by radio-emission or light reception? An opinion article on what sort of signal is a SETI hit.
Meta Description: [ WHAT is it that SETI can ever honestly announce? ]
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Sky and Telescope: SETI - A selection of articles from the online astronomy magazine relating to the scientific search for intelligent life in the universe.
Meta Description: [ Sky & Telescope, the Essential Magazine of Astronomy. News, observing tips, how-to advice, and more! ]
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.
Meta Description: [ Why the sky isn't saturated with radio signals. A proposed update to the Drake equation. ]
The Extraterrestrial Sermons - Masters thesis on how the reception of extraterrestrial transmissions might affect world religions.
The Search for Extraterrestrial Intelligence - General article about SETI.
Meta Description: [ Last week Sandeep died. A bus ran over him on a busy morning in this sleepy town. ]
The SERENDIP Project - Information and news on the Search for Extraterrestrial Radio Emissions from Nearby Developed Intelligent Populations.
The Society for Planetary SETI Research - Organization interested in planetary anomalies that may be the result of intelligent activity. With roster and bibliography.
Meta Description: [ The Society for Planetary SETI Research ]
Yahoo! Groups: SETI - Chat rooms and message boards for discussions. Registration is required to post articles and see pictures.
Meta Description: [ Directory : SETI (Search for Extraterrestrial Intelligence) ]
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