| 1. | African Letterboxing | 49 | public |
| 2. | Anchorage Crew | 8 | public |
| 3. | The Appalachian Trail | 40 | public |
| 4. | AQ Book Club | 121 | public |
| 5. | Asian Letterboxing | 143 | public |
| 6. | Beer, Wine and other adult drinks | 21 | public |
| 7. | BIA Addicts | 169 | public |
| 8. | Birthday Board! | 28 | public |
| 9. | Bitterroot Boxes | 10 | public |
| 10. | The Bottle Cap Gang | 8 | public |
| 11. | Box Radar | 266 | public |
| 12. | The Boxin People | 3 | public |
| 13. | Boxing at the Big Rock. | 51 | public |
| 14. | Boxing Buddies | 261 | public |
| 15. | Boxing for a cure | 5 | public |
| 16. | The Buckeye Trail | 35 | public |
| 17. | Cakers Unite | 17 | public |
| 18. | Canadian Letterboxing | 726 | public |
| 19. | Caribbean Letterboxing | 74 | public |
| 20. | The Carolina Wars | 31 | public |
| 21. | The Cat Lovers | 51 | public |
| 22. | Catholic and Proud | 18 | public |
| 23. | CCCP - Creative Clue Creation Proletariat | 310 | public |
| 24. | Cheese Lovers | 70 | public |
| 25. | Christians | 77 | public |
| 26. | Cleverly Crafty and Cheap | 52 | public |
| 27. | Clue Tracker | 93 | public |
| 28. | Coupon Savvy | 91 | public |
| 29. | ct letterboxing | 14 | public |
| 30. | Dead Horses, Lemurs, and Kittens | 243 | public |
| 31. | Doctor Who | 112 | public |
| 32. | Dream Catcher | 32 | public |
| 33. | Dungeons & Dragons | 73 | public |
| 34. | Dutch Country Letterboxing | 53 | public |
| 35. | e-readers | 63 | public |
| 36. | Eastern Europe Letterboxing | 106 | public |
| 37. | Elitist Club | 88 | public |
| 38. | Etsy Fans | 62 | public |
| 39. | Facebook Games | 80 | public |
| 40. | Fungus Amongus | 23 | public |
| 41. | Geocachers | 336 | public |
| 42. | Germ-a-phobes Unite | 8 | public |
| 43. | Ghost Facers | 3 | public |
| 44. | Ghost Hunters United | 36 | public |
| 45. | The Grateful Letterboxers | 465 | public |
| 46. | GREAT POND MOUNTAIN LETTERBOX OF THE MONTH CLUB | 2 | public |
| 47. | Happy Cake Day Association! | 24 | public |
| 48. | Heavy Metal Or No Metal At All! | 15 | public |
| 49. | Hermit Club | 20 | public |
| 50. | Hobby Box | 52,349 | public |
| 51. | It's Politics as Usual | 32 | public |
| 52. | L & B Songbook | 12 | public |
| 53. | Las Vegas Boxers | 5 | public |
| 54. | LB CON 2 Planning Committee | 124 | public |
| 55. | Left Handers Only | 37 | public |
| 56. | Let's Share | 66 | public |
| 57. | Letterboxing Humanists | 19 | public |
| 58. | Letterboxing Info & More! | 70 | public |
| 59. | Letterboxing Jeepsters | 4 | public |
| 60. | Letterboxing: The Game | 52 | public |
| 61. | LGTBQ Group | 33 | public |
| 62. | LTC Collective | 94 | public |
| 63. | LV Higher Education | 9 | public |
| 64. | May the 4th Be With You, CA | 14 | public |
| 65. | Mexican and Central American Letterboxing | 62 | public |
| 66. | Middle East Letterboxing | 68 | public |
| 67. | Military folks - family & support | 44 | public |
| 68. | Musical Postals | 114 | public |
| 69. | Musicians | 18 | public |
| 70. | Nanowrimo | 34 | public |
| 71. | Nerds Unite!! | 20 | public |
| 72. | Night Owls | 31 | public |
| 73. | Non-Traditional Boxes | 57,137 | public |
| 74. | Nutrisystem Letterboxers | 4 | public |
| 75. | Oceania Letterboxing | 181 | public |
| 76. | OpenStreetMap | 19 | public |
| 77. | Pathtags | 52 | public |
| 78. | Personal "Letterboxing" Challenge | 71 | public |
| 79. | Pin-ups | 2,916 | public |
| 80. | Postcard Tag Threads | 22 | public |
| 81. | Puget Sound Letterboxers | 30 | public |
| 82. | Quilter's Corner | 17 | public |
| 83. | Rock Stashing | 42 | public |
| 84. | Second-Hand LTC Land | 91 | public |
| 85. | Sky's the Limit | 24 | public |
| 86. | SLQ | 58 | public |
| 87. | South American Letterboxing | 49 | public |
| 88. | Special Needs Group | 19 | public |
| 89. | Spokane Chitchat | 30 | public |
| 90. | Stamp Swappers | 331 | public |
| 91. | Starfleet Command | 43 | public |
| 92. | Taphophiles Unite! | 25 | public |
| 93. | tell me something i dont know | 13 | public |
| 94. | Toad Hollow Friends | 55 | public |
| 95. | Tune In & Toon Out - It's Camp Time!!!! | 38 | public |
| 96. | Twilight Addiction | 55 | public |
| 97. | United States Letterboxing | 50,371 | public |
| 98. | Urban Boxers | 140 | public |
| 99. | The Venting Group | 143 | public |
| 100. | Virtuals | 4,515 | public |
