Guide to Geocaching for the Pilot. Hundreds of geocaches within walking distance of airports.

Provides free Linux software for the activity.

Provides information about basic caches, equipment, events, resources, photos, items for sale and links.

Dedicated to promoting and helping to build Geocaching communities through peer support and collective development of technical solutions. Includes downloads, FAQs, forums, archives and a members' list. Requires registration.

Directory attempts to show all known local geocache groups from around the world.

Features exciting point system to foster an environment of excitement while moving a cache to keep the game quite creative

Explanation of the sport, collection of recent news stories, maps of cache locations, a FAQ, and announcements of geocaching parties and events.

Tool for helping geocachers rate the overall and terrain difficulty of their hidden caches.

Information and news related to the hobby of geocaching and use of GPS,

Includes large database on caches to hunt down, along with general information on geocaching.

Enables users to upload and distribute accurately geo-referenced digital photographs using a camera and a GPS receiver.

Provides full services for organizing geocaching events for families, corporate groups, private parties, and scouting organizations.

Features a variety of games involving use of GPS receivers, including geocaching, geodashing, minutewar, geopoker and geogolf.

Handicaching aims to improve the accessibility of Geocaching for physically handicapped people all over the world.

Provides a wide range of information and listing resources for the geocaching enthusiast including worldwide cache listing.

Offers smaller amount of caches to acheive more challenging hunting with tools to empower even the new geocacher.