Interactive Map of Observatories, Planetariums, and Astronomy Clubs http://find.mapmuse.com/re1/mmHomeInterestsList.php?cat=Astronomy
StarWorlds http://cdsweb.u-strasbg.fr/starworlds.html largest searchable directory of organizations, institutions, associations, companies, and so on, involved in astronomy and related space sciences -- by (Prof.) Andre HECK; Observatoire Astronomique, Strasbourg, France; heck@astro.u-strasbg.fr; hecka@acm.org; http://cdsweb.u-strasbg.fr/~heck. Also lists
StarBits (acronyms/abbreviations): http://cdsweb.u-strasbg.fr/starbits.html
StarHeads (astronomers): http://cdsweb.u-strasbg.fr/starheads.html
Antique Telescope Society -- http://webari.com/oldscope
The Astronomical League, http://www.astroleague.org
AstroNotes:
Astro Note 7: Astronomical Pronunciation Guide - I, http://www.astroleague.org/al/astrnote/astnot07.html
Astro Note 14: Astronomical Pronunciation Guide - II, http://www.astroleague.org/al/astrnote/astnot14.html
Astro Note 19: So, You Want to Buy a Telescope?, http://www.astroleague.org/al/astrnote/astnot19.html
AAS (American Astronomical Society) http://www.aas.org/ --
Careers in astronomy: http://www.aas.org/education/students.htm#careers
MOOSE: Menu of Outreach Opportunities for Science Education (for Astronomy Ambassadors) - http://aas.org/outreach/moose-menu-outreach-opportunities-science-education
Newsletter of the Working Group on Astronomy Education -- http://www.aas.org/~wgae/wgae_index.html
AAVSO (American Association of Variable Star Observers) http://www.aavso.org/
ALPO (Association of Lunar and Planetary Observers) http://www.lpl.arizona.edu/alpo
Astronomical League http://www.astroleague.org/ Executive Secretary: Berton & Janet Stevens jastevens@compuserve.com. International Space Station Amateur Telescope (ISSAT) http://www.ISSAT.org/
Astronomical Society of the Pacific http://www.astrosociety.org/
Astronomy Behind the Headlines - http://astrosociety.org/abh
Frank Drake Tells How He Came Up with the Drake Equation: http://www.astrosociety.org/drake/
How High Up is Space (Classroom Activity):
http://www.astrosociety.org/education/activities/I11_How_High_Space.pdf
An Astronomer Looks at Astrology (an information sheet for both students and instructors):
Surfing the Solar System, Treasure Hunt Game from Family ASTRO at the Astronomical Society of the Pacific http://www.astrosociety.org/education/surf.html
Mercury Listserver: send "subscribe" message to mercury-request@lists.best.com; once subscribed, post messages at mercury@lists.best.com
Universe in the Classroom (Teachers Newsletter) http://www.astrosociety.org/education/tnl.html
The Universe at Your Fingertips 2.0 (DVD-ROM with 133 hands-on classroom activities, lots of articles, resources, images, and how-to videos for teaching astronomy at many levels and in many settings): http://www.astrosociety.org/uayf/
Cambridge University http://www.ast.cam.ac.uk/
Collaborative Asteroid Lightcurve Link (CALL) -- http://www.minorplanetobserver.com/astlc/
Cosmosphere http://www.cosmo.org/ one of the best collections of spacecraft, spacecraft replicas, and space objects in the world.
International Association of Astronomical Artists http://www.iAAA.org/
International Dark Sky Association - http://www.darksky.org -|- Model Dark Sky Ordinance - http://www.darksky.org/mlo
International Planetarium Society (IPS) http://www.ips-planetarium.org/
Illuminating Engineering Society of North America http://www.iesna.org/
Mars Society http://www.marssociety.org/
Nearby Star Observers http://www.nbso.org/
New England Light Pollution Advisory Group (NELPAG) http://cfa-www.harvard.edu/~graff/nelpag.html
Planetary Society http://planetary.org/
The Planetary Society Bay Area Volunteer Network http://www.tpsbavn.org/
Royal Astrononomical Society (UK) -- http://www.ras.org.uk/
Professional Planetarian's website http://www.planetarium.net