| Rank | Board name and description | Online users (average) | Posts | Members |
|---|
| 1 | Grass City
Marijuana Growing and Smoking community | 1353 | 12625889 | 478939 |
| 2 | Bimmerforums
BMW car brand message boards | 1187 | 22627365 | 376255 |
| 3 | NASIOC Forums
Forums of the North American Subaru Impreza Owners Club | 1070 | 35293395 | 299599 |
| 4 | Zilvia
Nissan 240sx discussion board | 419 | 4372743 | 110766 |
| 5 | TDI Club
VW TDI engine message boards | 402 | 3632778 | 93562 |
| 6 | Volks Zone
UK based Volkswagen Discussion group | 351 | 5429264 | 63324 |
| 7 | M3 Forum
BMW M3 owners community | 278 | 5796733 | 146053 |
| 8 | IWSTI
Subaru Impreza STI owners community | 265 | 3118537 | 74829 |
| 9 | Cadillac Forums
Forum for Cadillac owners and enthusiasts | 238 | 2294408 | 113385 |
| 10 | BARF
Bay Area Riders Forum | 165 | 3274696 | 22566 |
| 11 | Beyond.ca
Canadian car forums | 126 | 3806613 | 149271 |
| 12 | EvolutionM
Mitsubishi Lancer enthusiasts Community | 70 | 9807432 | 155153 |
| 13 | DTM Power
BMW tuning forums | 65 | 1578729 | 68549 |
| 14 | Land Rover UK
UK based Land Rover community | 58 | 1300669 | 41528 |
| 15 | Club3G
Mitsubishi Eclipse owners forums | 55 | 2399241 | 26537 |
| 16 | LS1
Chevrolet Camaro message boards | 37 | 2646111 | 51849 |
| 17 | BMW FAQ
BMW enthusiast Spanish board | 17 | 10356585 | 58780 |
| 18 | I-Club
Subaru owners community | 12 | 3185407 | 43697 |
| 19 | Mopar Chat
Car tuning and performance forums | 10 | 780633 | 54250 |
| 20 | Car Forum Misfits
Cars message board | 5 | 781767 | 1060 |
| 21 | CruiseCritic
Cruise travel message boards | 2 | 30542651 | 800891 |
| 22 | Cruise Addicts
Cruise message boards | 1 | 1286596 | 38166 |
| 23 | 240SX Forums
Nissan 240SX owners forums | 1 | 1268618 | 69080 |
| 24 | Skylines Australia
Australian automotive forum | 1 | 3250547 | 33042 |
| 25 | MNVibe
Electronic dance music discussion board | 1 | 1207112 | 9812 |
| 26 | 502 Streetscene
Automotive Discussion Forum | 1 | 3293629 | 11415 |
| 27 | Tsikot
Pinoy car lovers community | 1 | 1633972 | 115564 |
| 28 | LS2
General Motors discussion board | 1 | 12065333 | 24468 |
| 29 | Honda-Acura.net
Honda cars message boards | 1 | 4095587 | 107575 |
| 30 | Probe Talk
Ford Probe owners forums | 1 | 4588553 | 30706 |
| 31 | 240SX Forums
Nissan 240SX owners forums | 1 | 1268618 | 69080 |
| 32 | Turbo Buick
Buick owners community | 1 | 2369405 | 31822 |
| 33 | Honda-Acura.net
Honda cars message boards | 1 | 4095587 | 107575 |
| 34 | LS2
General Motors discussion board | 1 | 12065333 | 24468 |
| 35 | ClubSI
Honda Civic SI owners forum | 1 | 7704147 | 55094 |
| 36 | MTB news
German mountain bike discussion forums | 1 | 8980075 | 228912 |
| 37 | Tampa Racing
Car racing community | 1 | 6243052 | 88607 |
| 38 | Reef Central
Fish and Aquarium message boards | 1 | 15639505 | 226124 |
| 39 | V6 Performance
Forum for owners of V6 powered cars | 1 | 1758392 | 76843 |
| 40 | Honda Swap
A Honda/Acura Technical resource | 1 | 891797 | 37024 |
| 41 | Montreal racing
Car racing in Quebec (in french and english) message boards | 1 | 6941539 | 64633 |
| 42 | Michigan Jeepers - discontinued
Michigan Jeeps owners community | 1 | 310 | 4624 |
| 43 | Ephatch
Honda Civic owners forums | 1 | 1018678 | 13834 |
| 44 | Mini 2
Mini owners community | 1 | 3385255 | 63644 |
| 45 | No Pistons
Mazda RX7 message board | 1 | 810159 | 30127 |
| 46 | Cycle forums
Sportsbikes and motorcycling message boards | 1 | 4080504 | 77518 |
| 47 | Hardcore Sledder
Snowmobiles discussion forums | 1 | 5343661 | 68104 |
| 48 | RX8 Club
Mazda RX-8 owners forum | 1 | 3841178 | 82567 |
| 49 | Hardcore Sledder
Snowmobiles discussion forums | 1 | 5343661 | 68104 |
| 50 | All Ford Mustangs
Ford Mustang enthusiasts message board | 1 | 1816124 | 84049 |
| 51 | Reef Central
Fish and Aquarium message boards | 1 | 15639505 | 226124 |
| 52 | Modular Fords
Mustangs discussion board | 1 | 1452846 | 37957 |
| 53 | MTB news
German mountain bike discussion forums | 1 | 8980075 | 228912 |
| 54 | V6 Performance
Forum for owners of V6 powered cars | 1 | 1758392 | 76843 |
| 55 | NICO forums
Nissan and Infiniti message boards | 1 | 5525619 | 148980 |
| 56 | 240SX Forums
Nissan 240SX owners forums | 1 | 1268618 | 69080 |
| 57 | Lay it low
Lowriding fans message boards | 1 | 14184611 | 71887 |
| 58 | Dog o mania
Polish forum for dog owners | 1 | 2929129 | 21247 |
| 59 | 502 Streetscene
Automotive Discussion Forum | 1 | 3293629 | 11415 |
| 60 | Ranger Power Sports
Ford Ranger owners community | 1 | 1747110 | 66783 |
| 61 | No Pistons
Mazda RX7 message board | 1 | 810159 | 30127 |
| 62 | Velocidad Maxima
Car modifications forums (in spanish) | 1 | 607732 | 6442 |
| 63 | WebClub Subaru
Subaru owners community (in french) | 1 | 1607784 | 10739 |
| 64 | PPRuNe
Flying and airliners community | 1 | 1220627 | 68395 |
| 65 | Racers Den
Car racing forums | 1 | 66529 | 696 |
| 66 | Ten Tenths
Motorsports message board | 1 | 2988273 | 35477 |
| 67 | Lay it low
Lowriding fans message boards | 1 | 14184611 | 71887 |
| 68 | LS1 Tech
Chevrolet and GM enthousiasts discussion | 1 | 14342351 | 201791 |
| 69 | No Pistons
Mazda RX7 message board | 1 | 810159 | 30127 |
| 70 | MNVibe
Electronic dance music discussion board | 1 | 1207112 | 9812 |
| 71 | Prelude Power
Honda Entusiasts discussion board | 1 | 2492371 | 37005 |
| 72 | PPRuNe
Flying and airliners community | 1 | 1220627 | 68395 |
| 73 | Honda-Acura.net
Honda cars message boards | 1 | 4095587 | 107575 |
| 74 | No Pistons
Mazda RX7 message board | 1 | 810159 | 30127 |
| 75 | PPRuNe
Flying and airliners community | 1 | 1220627 | 68395 |
| 76 | ClubSI
Honda Civic SI owners forum | 1 | 7704147 | 55094 |
| 77 | Velocidad Maxima
Car modifications forums (in spanish) | 1 | 607732 | 6442 |
| 78 | British Blades
Custom knife making forum | 1 | 1337484 | 14591 |
| 79 | XL Forum
Sportster and Buell motorcycle forum | 1 | 2032872 | 41286 |
| 80 | Velocidad Maxima
Car modifications forums (in spanish) | 1 | 607732 | 6442 |
| 81 | MNVibe
Electronic dance music discussion board | 1 | 1207112 | 9812 |
| 82 | Trance Addict
Trance music and DJing discussion | 1 | 10865383 | 111121 |
| 83 | Michigan Jeepers - discontinued
Michigan Jeeps owners community | 1 | 310 | 4624 |
| 84 | Prelude Power
Honda Entusiasts discussion board | 1 | 2492371 | 37005 |
| 85 | MP3Car
Car computers forum | 1 | 1375278 | 138534 |
| 86 | Moped Portalen
Scooter and Moped discussion board | 1 | 1483759 | 12447 |
| 87 | Velocidad Maxima
Car modifications forums (in spanish) | 1 | 607732 | 6442 |
| 88 | MP3Car
Car computers forum | 1 | 1375278 | 138534 |
| 89 | my.IS
Lexus IS 300 message boards | 1 | 5080914 | 96170 |
| 90 | LS2
General Motors discussion board | 1 | 12065333 | 24468 |
| 91 | Turbo Buick
Buick owners community | 1 | 2369405 | 31822 |
| 92 | Zatzy
Swedish car forum | 1 | 1866121 | 19006 |
| 93 | Modular Fords
Mustangs discussion board | 1 | 1452846 | 37957 |
| 94 | Bike Guide
Bike forums | 1 | 563543 | 16572 |
| 95 | Mercedes Shop
Mercedes owners community | 1 | 1961753 | 39955 |
| 96 | WebClub Subaru
Subaru owners community (in french) | 1 | 1607784 | 10739 |
| 97 | Club Grand Prix
Pontiac grand prix discussion forums | 1 | 1384425 | 14900 |
| 98 | RX8 Club
Mazda RX-8 owners forum | 1 | 3841178 | 82567 |
| 99 | IH8MUD
Land Cruiser Forum | 1 | 5098816 | 48997 |
| 100 | Skylines Australia
Australian automotive forum | 1 | 3250547 | 33042 |
| 101 | NewTiburon
Tiburon discussion board | 1 | 2675263 | 36967 |
| 102 | Club Grand Prix
Pontiac grand prix discussion forums | 1 | 1384425 | 14900 |
| 103 | Turbo Buick
Buick owners community | 1 | 2369405 | 31822 |
| 104 | MTB news
German mountain bike discussion forums | 1 | 8980075 | 228912 |
| 105 | Honda Swap
A Honda/Acura Technical resource | 1 | 891797 | 37024 |
| 106 | Mpfs Promotions
Producing, mixing, clubbing and music talk | 1 | 926634 | 6624 |
| 107 | UBRF.org
Western New York Automotive Forum | 1 | 1162012 | 8093 |
| 108 | NewTiburon
Tiburon discussion board | 1 | 2675263 | 36967 |
| 109 | VW vortex forums
Volkswagen and related car brands discussion boards | 1 | 60695474 | 526883 |
| 110 | Pacific Northwest Riders
Motorcycle rides forum | 1 | 1330908 | 10465 |
| 111 | LS1 Tech
Chevrolet and GM enthousiasts discussion | 1 | 14342351 | 201791 |
| 112 | Cycle forums
Sportsbikes and motorcycling message boards | 1 | 4080504 | 77518 |
| 113 | VW vortex forums
Volkswagen and related car brands discussion boards | 1 | 60695474 | 526883 |
| 114 | Mpfs Promotions
Producing, mixing, clubbing and music talk | 1 | 926634 | 6624 |
| 115 | Jabbas World
Car discussion site | 1 | 867937 | 48596 |
| 116 | All Ford Mustangs
Ford Mustang enthusiasts message board | 1 | 1816124 | 84049 |
| 117 | LS2
General Motors discussion board | 1 | 12065333 | 24468 |
| 118 | ClubSI
Honda Civic SI owners forum | 1 | 7704147 | 55094 |
| 119 | Trance Addict
Trance music and DJing discussion | 1 | 10865383 | 111121 |
| 120 | Forum Auto
Automotive discussion (in french) | 1 | 24412819 | 427603 |
| 121 | 502 Streetscene
Automotive Discussion Forum | 1 | 3293629 | 11415 |
| 122 | Tampa Racing
Car racing community | 1 | 6243052 | 88607 |
| 123 | Thumper Talk
Motocross message boards | 1 | 9660465 | 321222 |
| 124 | Mercedes Shop
Mercedes owners community | 1 | 1961753 | 39955 |
| 125 | Ephatch
Honda Civic owners forums | 1 | 1018678 | 13834 |
| 126 | Montreal racing
Car racing in Quebec (in french and english) message boards | 1 | 6941539 | 64633 |
| 127 | Fish Forums
Tropical Fish message boards | 1 | 2559485 | 46841 |
| 128 | Racers Den
Car racing forums | 1 | 66529 | 696 |
| 129 | VW vortex forums
Volkswagen and related car brands discussion boards | 1 | 60695474 | 526883 |
| 130 | LS1 Tech
Chevrolet and GM enthousiasts discussion | 1 | 14342351 | 201791 |
| 131 | Club Grand Prix
Pontiac grand prix discussion forums | 1 | 1384425 | 14900 |
| 132 | Forum Auto
Automotive discussion (in french) | 1 | 24412819 | 427603 |
| 133 | Club Grand Prix
Pontiac grand prix discussion forums | 1 | 1384425 | 14900 |
| 134 | No Pistons
Mazda RX7 message board | 1 | 810159 | 30127 |
| 135 | Dog o mania
Polish forum for dog owners | 1 | 2929129 | 21247 |
| 136 | Fish Forums
Tropical Fish message boards | 1 | 2559485 | 46841 |
| 137 | Tampa Racing
Car racing community | 1 | 6243052 | 88607 |
| 138 | my.IS
Lexus IS 300 message boards | 1 | 5080914 | 96170 |
| 139 | PPRuNe
Flying and airliners community | 1 | 1220627 | 68395 |
| 140 | Bike Guide
Bike forums | 1 | 563543 | 16572 |
| 141 | Racers Den
Car racing forums | 1 | 66529 | 696 |
| 142 | V6 Performance
Forum for owners of V6 powered cars | 1 | 1758392 | 76843 |
| 143 | Arachnoboards
Invertebrate Hobbyist forum community | 1 | 1480787 | 28695 |
| 144 | No Pistons
Mazda RX7 message board | 1 | 810159 | 30127 |
| 145 | XL Forum
Sportster and Buell motorcycle forum | 1 | 2032872 | 41286 |
| 146 | Modular Fords
Mustangs discussion board | 1 | 1452846 | 37957 |
| 147 | RX8 Club
Mazda RX-8 owners forum | 1 | 3841178 | 82567 |
| 148 | The Fiat Forum
Fiat discussion board | 1 | 2901527 | 110178 |
| 149 | No Pistons
Mazda RX7 message board | 1 | 810159 | 30127 |
| 150 | Bilforumet
Multi-brand cars forum (in Norwegian) | 1 | 1077532 | 18645 |
| 151 | NICO forums
Nissan and Infiniti message boards | 1 | 5525619 | 148980 |
| 152 | Honda-Acura.net
Honda cars message boards | 1 | 4095587 | 107575 |
| 153 | Mpfs Promotions
Producing, mixing, clubbing and music talk | 1 | 926634 | 6624 |
| 154 | Ten Tenths
Motorsports message board | 1 | 2988273 | 35477 |
| 155 | Probe Talk
Ford Probe owners forums | 1 | 4588553 | 30706 |
| 156 | Honda Swap
A Honda/Acura Technical resource | 1 | 891797 | 37024 |
| 157 | Honda-Acura.net
Honda cars message boards | 1 | 4095587 | 107575 |
| 158 | Mini 2
Mini owners community | 1 | 3385255 | 63644 |
| 159 | Cruise Addicts
Cruise message boards | 1 | 1286596 | 38166 |
| 160 | Bilforumet
Multi-brand cars forum (in Norwegian) | 1 | 1077532 | 18645 |
| 161 | The Fiat Forum
Fiat discussion board | 1 | 2901527 | 110178 |
| 162 | Mercedes Shop
Mercedes owners community | 1 | 1961753 | 39955 |
| 163 | Ranger Power Sports
Ford Ranger owners community | 1 | 1747110 | 66783 |
| 164 | NICO forums
Nissan and Infiniti message boards | 1 | 5525619 | 148980 |
| 165 | Pacific Northwest Riders
Motorcycle rides forum | 1 | 1330908 | 10465 |
| 166 | Ten Tenths
Motorsports message board | 1 | 2988273 | 35477 |
| 167 | Mpfs Promotions
Producing, mixing, clubbing and music talk | 1 | 926634 | 6624 |
| 168 | NICO forums
Nissan and Infiniti message boards | 1 | 5525619 | 148980 |
| 169 | Jabbas World
Car discussion site | 1 | 867937 | 48596 |
| 170 | UBRF.org
Western New York Automotive Forum | 1 | 1162012 | 8093 |
| 171 | RX8 Club
Mazda RX-8 owners forum | 1 | 3841178 | 82567 |
| 172 | Arachnoboards
Invertebrate Hobbyist forum community | 1 | 1480787 | 28695 |
| 173 | Blade Forums
Knives discussion boards | 1 | 8422586 | 179414 |
| 174 | Mercedes Shop
Mercedes owners community | 1 | 1961753 | 39955 |
| 175 | Moped Portalen
Scooter and Moped discussion board | 1 | 1483759 | 12447 |
| 176 | Thumper Talk
Motocross message boards | 1 | 9660465 | 321222 |
| 177 | All Ford Mustangs
Ford Mustang enthusiasts message board | 1 | 1816124 | 84049 |
| 178 | Trance Addict
Trance music and DJing discussion | 1 | 10865383 | 111121 |
| 179 | Dodge Talk
Dodge enthusiasts community | 1 | 2349767 | 125898 |
| 180 | VW vortex forums
Volkswagen and related car brands discussion boards | 1 | 60695474 | 526883 |
| 181 | Dodge Talk
Dodge enthusiasts community | 1 | 2349767 | 125898 |
| 182 | Moped Portalen
Scooter and Moped discussion board | 1 | 1483759 | 12447 |
| 183 | Lay it low
Lowriding fans message boards | 1 | 14184611 | 71887 |
| 184 | NewTiburon
Tiburon discussion board | 1 | 2675263 | 36967 |
| 185 | New Celica
Toyota Celica discussion forums | 1 | 3592475 | 31948 |
| 186 | LS1 Tech
Chevrolet and GM enthousiasts discussion | 1 | 14342351 | 201791 |
| 187 | Forum Auto
Automotive discussion (in french) | 1 | 24412819 | 427603 |
| 188 | V6 Performance
Forum for owners of V6 powered cars | 1 | 1758392 | 76843 |
| 189 | Forum Auto
Automotive discussion (in french) | 1 | 24412819 | 427603 |
| 190 | Prelude Power
Honda Entusiasts discussion board | 1 | 2492371 | 37005 |
| 191 | MTB news
German mountain bike discussion forums | 1 | 8980075 | 228912 |
| 192 | Zatzy
Swedish car forum | 1 | 1866121 | 19006 |
| 193 | MP3Car
Car computers forum | 1 | 1375278 | 138534 |
| 194 | VW vortex forums
Volkswagen and related car brands discussion boards | 1 | 60695474 | 526883 |
| 195 | LS2
General Motors discussion board | 1 | 12065333 | 24468 |
| 196 | Ten Tenths
Motorsports message board | 1 | 2988273 | 35477 |
| 197 | New Celica
Toyota Celica discussion forums | 1 | 3592475 | 31948 |
| 198 | Mini 2
Mini owners community | 1 | 3385255 | 63644 |
| 199 | IH8MUD
Land Cruiser Forum | 1 | 5098816 | 48997 |
| 200 | MNVibe
Electronic dance music discussion board | 1 | 1207112 | 9812 |
| 201 | New Celica
Toyota Celica discussion forums | 1 | 3592475 | 31948 |
| 202 | Ephatch
Honda Civic owners forums | 1 | 1018678 | 13834 |
| 203 | Trance Addict
Trance music and DJing discussion | 1 | 10865383 | 111121 |
| 204 | IH8MUD
Land Cruiser Forum | 1 | 5098816 | 48997 |
| 205 | Montreal racing
Car racing in Quebec (in french and english) message boards | 1 | 6941539 | 64633 |
| 206 | Ten Tenths
Motorsports message board | 1 | 2988273 | 35477 |
| 207 | Tsikot
Pinoy car lovers community | 1 | 1633972 | 115564 |
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