Astrodienst: Free Horoscopes, Time Zone Database and much more
www.astro.com
The Mountain Astrologer - America's leading astrology magazine
www.mountainastrologer.com
Astrology Software Guides
Hank Friedman (US)
Philipeau (French)
Tutorials and Introductions to Astrology
Astrodienst
Hank Friedman
Astrological Association Great Britain
www.astrologicalassociation.com
Midheaven Bookshop. Distributor for CPA press publications.
www.midheavenbooks.com
Centaur Research Project
www.kentauren.info
The Orbit Simulation Applet of NASA's JPL interactively shows orbits of planets, minor planets,
asteroids, centaurs etc.
neo.jpl.nasa.gov/orbits/