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Letterboxing North America
US-based portal offering FAQ, links, forums, and a members-only section where clues can be submitted. http://www.letterboxing.org/
» 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 Northeast
The Drew family of East Lyme, Connecticut, offer clues in New England states as well as Washington, DC, South Carolina, and Colorado.
http://hometown.aol.com/drewclan/
» 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/
» Mark and Sue Pepe
Couple from Kensington, Connecticut describe activities in eleven states and the island of Aruba.
» NPR : Letterboxing
Radio host Linda Wertheimer and Thomas Johnston, an enthusiast in Washington, D.C., find a letterbox near the White House. [audio]
» Ryan's Letterboxes
Personal page with clues for boxes placed throughout the western United States, as well as a few in Canada, Africa, and Central America. Also includes tips for improving the stamp quality.
http://www.geocities.com/rscarpen/Lb/
» 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/
» Silver Eagle's Letterbox Aerie
Clues to nearly 100 letterboxes that Silver Eagle has placed in North America, primarily in Texas.
» 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.