- www.nova-astro.com
- www.anomalies.com/iotaweb/index.htm
- iraf.noao.edu/iraf-homepage.html
- MyStars! Is a windows shareware program for amateur sky watchers. View towards stars, planets and watch animations from your home. Perfect for beginners to astronomy.relativedata.com
- The NSSDC archives hold over 200 different CD-ROMs at this time. The majority of these sets hold imaging data gathered from planetary exploration missions.nssdc.gsfc.nasa.gov/cd-rom/cd-rom.html
- www.procyon-sys.com
- home.hiwaay.net/~wintrak
