Amateur SETI: Project BAMBI
The design, construction, and initial observational results of a 4-GHz amateur radio telescope. Site also provides links to other resources in radio astronomy.
http://www.bambi.net/

Amateur SETI
Links, files and programs supporting the development of amateur SETI and radio astronomy as hobbies.
http://php.indiana.edu/~foxd/home-seti.html

Pisgah Astronomical Research Institute
Non-profit public foundation dedicated to providing research and educational access to optical and radio astronomy. Located in Rosman, North Carolina, United States.
http://www.pari.edu/

Basics of Radio Astronomy
This workbook was developed to support training for the Goldstone-Apple Valley Radio Telescope, but is a resource applicable to all radio astronomy. Published by NASA's Jet Propulsion Laboratory.
http://www.jpl.nasa.gov/radioastronomy/

Amateur Radio Astronomy
A radio-telescope project observing the natural radio emissions of neutral hydrogen atoms throughout space.
http://www.SignalONE.com/radioastronomy/telescope/

Amateur Radio Astronomy in the Yorkshire Cales
Amateur radio-telescope project.
http://www.3peaks.org.uk

Radio Astronomy at the University of Indianapolis
Site provides educational information about radio astronomy. Radiotelescope data from their project is posted on the Web in real time.
http://radio.uindy.edu/radio

SARA - Society of Amateur Radio Astronomers
International non-profit amateur group dedicated to observing the radio sky and sharing technical information.
http://www.bambi.net/sara.html

EME, SETI, Radio Astronomy, DSP, and Radio Amateurs
Site dedicated to amateur radio astronomy, providing information on Earth-Moon-Earth communication, the search for extra-terrestrial intelligence, radio astronomy and digital-signal processing.
http://www.nitehawk.com/rasmit/welcome1.html

Multi-SETI@Home Monitor
A graphical add-on package to monitor seti@home activity that may be running on multiple computers over a network or multiple instances on the same computer. Runs on Windows or Linux/Unix.
http://msetimon.sourceforge.net

European Radio Astronomy Club
Founded in Europe in 1995 to help people in numerous countries do radio astronomy. Based in Germany.
http://erac.wegalink.com

JupiterRadio.com
Dedicated to observing and analyzing natural decametric radio emissions from Jupiter and the sun.
http://www.jupiterradio.com/

Community Development Institute
A non-profit organization dedicated to the search for extra-terrestrial intelligence. Located in Brisbane, Australia.
http://www.seti.org.au

National Radio Astronomy Observatory
A research facility of the United States National Science Foundation. Site contains an image gallery, an introduction to radio astronomy, and other related information.
http://www.aoc.nrao.edu

Big Ear Radio Observatory - Ohio State University Radio Observatory
Kraus-type radio telescope, larger than three football fields, famous for the 'Wow! Signal' and for the longest-running SETI project. Historical information, new possibilities and requests for assistance. Volunteer-based.
http://www.bigear.org/default.htm

Beginner's Guide to Radio Astronomy and SETI
Authored by the original webmaster for the Big Ear Radio Observatory's website, introduces beginners to radio astronomy and SETI.
http://www.bigear.org/guide.htm

UKARANet - United Kingdom Amateur Radio Astronomy Network
A site for amateur radio astronomy mainly for, but not limited to, the United Kingdom. Provides information for beginners, and project ideas as well as articles and downloadable archive material.
http://www.ukaranet.org.uk