| Rank | Board name and description | Posts | Members |
| 1 | NASIOC Forums Forums of the North American Subaru Impreza Owners Club | 29120766 | 231907 |
| 2 | HFBoards Hockey and NHL message board | 23377228 | 70950 |
| 3 | Bimmerforums BMW car brand message boards | 18278349 | 263029 |
| 4 | Scoobynet Subaru Impreza owners community | 9007933 | 109180 |
| 5 | NICO forums Nissan and Infiniti message boards | 5474289 | 147304 |
| 6 | Living With Style General discussion message board | 5310562 | 83482 |
| 7 | CamaroZ28.com Chevrolet Camaro Z28 discussion forums | 4982373 | 85986 |
| 8 | Gixxer Suzuki GSX-R enthousiasts message boards | 4249229 | 135211 |
| 9 | Civic Forums Honda civic enthousiasts forums | 3750455 | 49373 |
| 10 | Mini 2 Mini owners community | 3324271 | 45920 |
| 11 | FSUniverse Figure Skating Forum | 2635738 | 21590 |
| 12 | Home Theater forum Home theater and entertainment discussion board | 2386231 | 91127 |
| 13 | Bullshido Martial Arts discussion forum | 2250310 | 95262 |
| 14 | Anabolic Minds Nutritional supplements discussion forum | 2207996 | 100593 |
| 15 | Cadillac Forums Forum for Cadillac owners and enthusiasts | 2161945 | 106110 |
| 16 | Dark forum General discussion message boards | 1351087 | 10570 |
| 17 | EDM Planet Club and rave in the US community | 1075106 | 5032 |
| 18 | Satellite Guys High Tech TV information source | 691767 | 57629 |
| 19 | Militate Amine and Yu-Gi-Oh message boards | 690131 | 9737 |
| 20 | 80s Xchange 80s decade fans online community | 682477 | 15046 |