| Border Lights Affecting Palominas Observatory | International Dark-Sky Association (IDA) | Southern California Light Pollution Map |
| (The) Greek Alphabet | Greek Alphabet Table |
| Friends of Palomar Observatory | Molecular Expressions: Science, Optics and You | NASA - Beware the Mars Hoax |
| Robert Burnham, Jr. | San Diego Astronomy Association Yahoo Chat Group | Star Gazer |
| Limiting Magnitude of Your Telescope | Hot to Estimate a Comet's Brightness | Magnitude | (The) Pickering Seeing Scale |
| Hale Telescope Web Cam |
| Amateur Telescope Maker's (ATM's) Archives | ATM Page | ATM Programs |
| ATM's Resource List (?) | atmjournal.com |
| Astromart | Astronomical Telescope and Optics Formulas | Riverside Telescope Makers Conference (RTMC) |