Planetary Observers (ALPO)
Star party in north Norfolk. Location, facilities, and registration information.
http://www.lpl.arizona.edu/alpo/

Planetary Observer's Forum
Links (user submitted), calendar and discussion for all planetary observers.
http://www.skyrover.net/pof/

The Nine Planets
A multimedia tour of the solar system.
http://www.nineplanets.org/