British Columbia Geocaching Association
   Portal to caching in and around BC. Promotes geocaching in BC by providing the resources such as News, Events, Downloads, Links, Recent Caches, and Fourms.
   http://www.bcgeocaching.com

Buxley's Geocaching Waypoint
   Explanation of the sport, collection of recent news stories, maps of cache locations, a FAQ, and announcements of geocaching parties and events.
   http://www.brillig.com/geocaching/

Colorado Geocaching Resource Pages
   A summary of geocaching regulations in various Colorado public lands.
   http://home.earthlink.net/~rsgeek

Degree Confluence Project
   A project with the goal to visit each of the latitude and longitude integer degree intersections in the world, take pictures at each location, and post pictures and stories on the website. (Not exactly geocaching...)
   http://www.confluence.org/

Geo-* - Linux tools for Geocaching
   Provides free Linux software for the activity.
   http://geo.rkkda.com

GeoSnapper - GPS Photography
   Enables users to upload and distribute accurately geo-referenced digital photographs using a camera and a GPS receiver.
   http://www.geosnapper.com

Geocache Rating System
   Tool for helping geocachers rate the overall and terrain difficulty of their hidden caches.
   http://www.clayjar.com/gcrs/

GeocacheUK
   Information and resources for UK geocachers including forums, chat rooms, maps and stats.
   http://www.geocacheuk.com/

Geocaching Australia
   Australian geocaching portal complete with links to forums, mapping tools and personal cache pages.
   http://geocaching.com.au

Geocaching Geocoins Canada
   Geocoins are numbered geocaching coins that are designed to provide geocachers with a collectable, tradable and trackable cache prize.
   http://www.geocoins.ca/

Georgia Geocachers Association
   Includes cache events in Georgia, what's new, issues facing the GGA, discussion boards, as well as a resource section.
   http://www.ggaonline.org

Michigan Geocaching Organization
   Promotes geocaching in Michigan. Site includes, forums, news, downloads, and articles.
   http://mi-geocaching.org/

Navicache
   Provides a wide range of information and listing resources for the geocaching enthusiast including worldwide cache listing service, forums, and chat.
   http://www.navicache.com/

North Carolina Geocachers Association
   Promotes and enhances geocaching throughout North Carolina. Listings of geocaches, information about membership and etiquette.
   http://www.ncgeocachers.com

North Texas Geocaching Association
   Features news, articles, information on membership and activities, FAQs, links and contact details.
   http://www.ntxga.org/

Oklahoma Geocaching
   News, forums and event listings for cachers in Oklahoma.
   http://okgeocaching.com/

St.. Louis Area Geocachers Association
   Features information on the group, activities, discussion forum, links and contacts.
   http://www.geostl.com/

Tampa Bay Geocaching
   Resources for GPS enthusiats in the Tampa Bay, Florida.
   http://www.tampabaygeocaching.com

The Groundspeak Forums
   Includes discussions on general questions, geographical regions, adventures, and GPS related issues.
   http://forums.groundspeak.com/GC/

The Maryland Geocaching Society
   Geocaching related resources related to caching activities in Maryland. Site includes forums, chat, cache listings and coming events
   http://www.mdgps.net

Utah geocaching games
   Variety of geocaching games in and around Utah.
   http://www.cachunuts.com

Wisconsin Geocaching Association
   Dedicated to promoting the activity through out the state. Features message boards, links, maps, membership information and photos.
   http://www.wi-geocaching.com/