| 1. Boulter Geocaching |
| Has several useful tools such as coordinate converter and mapper, quick search, coordinate grabber, distance calculator, Bay Area geocaching leaders, expertGPS calibrated maps and geocaching express logger. |
| http://www.boulter.com/geocaching/ |
| 2. Buxley's Geocaching Waypoint |
| Explanation of the sport, collection of recent news stories, maps of cache locations, FAQ, and announcements of geocaching parties and events. |
| http://www.brillig.com/geocaching/ |
| 3. Cache-A-Maniacs |
| Features recorded episodes in a candid, uncut, and irregular form with a member of the Geocaching community. |
| http://www.cacheamaniacs.com/ |
| 4. CacheMagnet |
| Open source geocaching waypoint management software. |
| http://cachemagnet.googlepages.com/ |
| 5. CacheMate |
| Geocaching database for Palm OS, Pocket PC, and Windows Smartphone. |
| http://www.smittyware.com/intro/cachemate/ |
| 6. CacheboxStore.com |
| Providing a resource of geocaching containers, travel bugs, and accessories. |
| http://www.cacheboxstore.com |
| 7. Cacheopedia |
| A wiki-based online encyclopedia, reference, and guide. |
| http://cacheopedia.com/wiki/Main_Page |
| 8. EarthCache |
| A special place that people can visit to learn about a unique geoscience feature or aspect of our Earth. |
| http://www.earthcache.org/ |
| 9. GPS - The Movie |
| A film based on GPS treasure hunting. |
| http://www.gpsthemovie.com/ |
| 10. GPS Adventures |
| Learn about traditional and modern navigation, explore ways GPS is used, find out where the technology is heading in the future, and discover geocaching. |
| http://www.gpsmaze.com/ |
| 11. GPSgames.org |
| Features a variety of games involving use of GPS receivers, including geocaching, geodashing, minutewar, geopoker and geogolf. |
| http://gpsgames.org/ |
| 12. GSAK (Geocaching Swiss Army Knife) |
| A geocaching and waypoint management tool. Major features include: multiple databases, sending/receiving waypoints to GPSr, Google maps, conversion to many mapping formats, PDA and HTML output. Runs on Win98, ME, NT, 2000, XP, Vista. |
| http://www.gsak.net/ |
| 13. GeoBuddy |
| Geocaching software that displays all the geocaches in your area over topo maps and aerial photos for trip planning. |
| http://www.geobuddy.com/ |
| 14. GeoCacher - GeoCaching South Africa |
| Features general information about geodashing, etiquette, creed, safety tips, and a fanshop. |
| http://www.geocacher.co.za/ |
| 15. GeoCaching Flickr Group |
| Brings related pictures, discussions and a map. |
| http://www.flickr.com/groups/geocaching/ |
| 16. GeoLex - The Lexicon of Geocaching |
| Features a glossary of geocaching terms. |
| http://geolex.locusprime.net/ |
| 17. GeoQO |
| A free geographical waypoint management software set that lets you manage geocaches and other types of geographical data. |
| http://www.geoqo.org/ |
