See also:
This category in other languages:
Letterboxing North America - US-based portal offering FAQ, links, forums, and a members-only section where clues can be submitted.Letterboxing North America WebRing - Links to dozens of forums and clue sites.
Aisling Dart Artist from Salem, Massachusetts describes her boxes. http://www.aisling.net/lb/lb-index.htm
Atlas Quest Letterboxing Community with forums, searchable clues, trip planner, recording of finds, event listings, trackers, tutorials, photo galleries, and chat room. http://www.atlasquest.com/
British Columbia Letterboxes Introduction, photographs of personal stamps, and clues for boxes planted in southwest British Columbia. http://www.ajaster.com/letterboxing/
Buckaroo's Letterboxing Clues for boxes she planted in Washington and Massachusetts. http://sophia.smith.edu/~rlay/letterboxing.htm
Chuck's Letterboxing Chuck and Molly's letterboxes in Connecticut. http://www.chuckstraub.com/Letterboxing/connecticut_letterboxes.htm
Dartmoor Letterboxes Introduction, tips and things to avoid, news, survey, and letterbox clues for the Dartmoor area. http://www.plympton.info/dartmoor/
Dartmoor Letterboxing Includes a forum, image gallery, map of the area, contact details, and the history of the activity. http://www.dartmoorletterboxing.org
Der Mad Stamper Rubber stamp carver Mitch offers instructions on how to carve a stamp and clues to the many boxes he's planted in the US. http://www.mitchklink.com/letterboxing/
First Finds Posts first finds submitted by new US letterboxers, organized by state. http://firstfinds.blogspot.com/
Florida Letterboxing Social group that has mini-meets and gatherings. Includes event schedules and photo galleries. http://www.flletterboxing.com/index.html
Have Feet Will Travel Introduction, contact details, and guidelines for letterboxing in the Dartmoor area. http://easyweb.easynet.co.uk/~have.feet/boxing/boxing.html
I-95 Letterboxes Clues to quick and easy letterboxes to find while traveling on Route I-95, from Maine to Florida. http://i95boxing.blogspot.com/
Kansas Letterboxes Clues for letterboxes located in Kansas. http://www.angelfire.com/oz/kansas_letterboxes/
LB Con National letterboxing convention. List of events, tickets and merchandise, accommodations, and visitors guide. http://www.letterboxingcon.info/
Letterboxers Anonymous Forum with clues and discussion topics. Includes helpful hints on methods and supplies. http://www.leecomputers.com/letterboxing/
Letterboxing Germany Clues for Germany and other European countries. Includes photos and tips. [English, German] http://www.letterboxing-germany.de/
Letterboxing Minnesota Includes letterboxing basics and clues for Minnesota letterboxes. http://www.littlekeylime.com/letterboxingmn.html
Letterboxing Questionnaire British university student studying letterboxing for her dissertation asks visitors to answer a few questions on the activity. http://homepage.ntlworld.com/chris.donovan10/
The Mapsurfer Treasureboxes Challenging letterbox clues by Randy Hall, the author of The Letterboxing Companion. http://www.mapsurfer.com/boxes/
Mark and Sue Pepe Couple from Kensington, Connecticut describe activities in eleven states and the island of Aruba. http://markandsuepepe.blogspot.com/
Massachusetts Letterboxes Bonnie and Betsey Sennott offer clues to their boxes in Massachusetts. http://users.crocker.com/~bsennott/letterbox.html
New Zealand Letterboxing Clues, views, and news including boxes from Team Psychokiwi, Judi, Linton, and the Bunny. http://www.psychokiwi.org/letterboxing/nzboxing.htm
Silent Doug's Letterboxing Site Articles including getting started, outdoor ethics, and explanation of cryptic letterboxer codes. Also includes list of boxes found and clues for boxes placed in the northeastern region of the United States. http://www.letterboxing.info/
The Space Traveler Family offers clues for Pennsylvania, New York and other states. http://www.enter.net/~space/Pages/Letterboxchart.html
Stamp-in-the-Box Blog and Michigan clues and events. http://www.stampinthebox.com/
Treasure Hikers Incentive program for letterboxers based on miles hiked. http://www.treasurehikersusa.com/
Urban Letterboxing Database of clues to letterboxes in urban locations, primarily in Europe. http://spacehijackers.co.uk/letterboxing/
Wanda and Pete's Letterboxes Clues for boxes placed primarily in Rhode Island, but a few in other states as well. Also includes logs of the movement of hitchhiker boxes, primarily in New England. http://alum.wpi.edu/~p_miner/Letterboxes.html
We Live and Breathe Letterboxing Accounts, photographs, and memorabilia of the 2008 event as well as an online recreation of the letterboxing museum. http://www.weliveandbreathe.com
What is Letterboxing? Michelle Spalding offers a history of letterboxing in England and the United States with bibliography. http://www.gigagraphica.com/Michelle/letrbox.html
New Times: Carved in Rubber Introductory article by Ashley Schwellenbach featuring a letterboxer and the founder of Atlas Quest. (June 17, 2009) http://www.newtimesslo.com/art/2774/carved-in-rubber/
NPR : Letterboxing Radio host Linda Wertheimer and Thomas Johnston, an enthusiast in Washington, D.C., find a letterbox near the White House. [audio] (April 10, 2004) http://www.npr.org/templates/story/story.php?storyId=1832303
Washington Post: Thinking Inside the Box Article by Caroline Kettlewell describes her discovery of the activity. (July 12, 2002) http://www.washingtonpost.com/ac2/wp-dyn?pagename=article&node=&contentId=A55308-2002Jul11