Associations
- Geocaching – Groundspeak, Inc.
- TrigpointingUK – Trigpoint Logging System
- GAGB – Geocaching Association of Great Britain
Puzzles
Caching Dictionaries
- Geocaching.com – Groundspeak’s dictionary
- Geocaching Junkie – A blog of the travels and adventures of a Geocacher
Tools
- Project GC – A host of online tools and stat generators
- Geocaching Toolbox – A pretty comprehensive online tool set for Geocaching
- GSAK (Geocaching Swiss Army Knife) – Windows Geocaching management toolÂ
- iCaching – Mac Geocaching management tool
- Open Cache Manager – Linux Geocaching management tool (Free & Open Source)
Other Groups
- Manx Geocaching – The incredibly friendly cachers of the Isle of Man
- Geocaching Ireland – A great group of welcoming cachers