Directories

AstroLinks - Internet's Astronomy Guide
Cosmobrain's Astrolinks is a complete guide for Astronomy on the web. Only selected links.
http://www.cosmobrain.com/cosmobrain/astrolinks.html

Astronomy by ExploreSpace.com
Includes an online store, classifieds, telescope information, discussion forum, and astronomy links.
http://www.explorespace.com/

Astronomy Resources
Links to hundreds of astronomy sites.
http://www.educationindex.com/astro/

Astronomy World Wide Space Link
Links to largest telescopes, professional astronomers, planetaria, pictures, amateur equipment.
http://www.geocities.com/spacelink.geo/

Astronomylinks.com
Over 500 astronomy and space related links, updated frequently. Submit your own link.
http://astronomylinks.com/

Cosmobrain Astronomy and Astrophysics
Helpful index of links relating to many different aspects of Astronomy.
http://www.cosmobrain.com/

Galactic Surf
Web portal with extensive collection of internet links on astronomy and space topics.
http://www.galacticsurf.net/

LLEK Bookmarks Scientific Search Engines - Astronomy
A catalog of scientific resources and media worldwide but especially in German and English: Directories of Astronomy Journals; Astronomy-related catalogs of scientific search engines; additional starting points and sites of special interest.
http://llek.de/english/thematic/nature/astronomie_e.htm

Mike Boschat's Astronomy Page
Many astronomical sites.
http://www.atm.dal.ca/~boschat/

Sky and Telescope - Internet Resources
Astronomy links, lists and newsgroups.
http://skytonight.com/resources/internet/

The Telson Spur: A Way Station for Snark Hunters
The Snark Hunter's Page is a meta-list of mainly academic resources organized on the theme of necessity vs. contingency in the study of time and evolution.
http://www.snark.org/~pjhughes/