| Rank | Board name and description | Posts | Members |
| 1 | 4chan Japanese culture message board | 352671252 | 30297 |
| 2 | Nexopia Picture rating, sex and relationships forums | 182602864 | 1424092 |
| 3 | FaceTheJury Real life picture rating forums | 158127563 | 552000 |
| 4 | Something Awful General discussion forums | 94488938 | 135253 |
| 5 | Fok.nl General discussion bulletin board (in dutch) | 74327650 | 280620 |
| 6 | BuddyPic Picture rating message board | 72366965 | 1587120 |
| 7 | Christian Forums Christian-based forum and online community | 47768404 | 224279 |
| 8 | Rus-Chat Russian teens message boards | 47611655 | 1214004 |
| 9 | PinoyExchange Online Filipino community | 38878703 | 339595 |
| 10 | JLA Forums General discussion forum | 30088936 | 32870 |
| 11 | Literotica Adult stories and erotic literature message boards | 23404268 | 831207 |
| 12 | Marokko.nl Dutch forum for people originally from Marocco | 22317264 | 162566 |
| 13 | Transact.no Norvegian general discussion forums | 22305812 | 160200 |
| 14 | The Student Room UK students forums | 22032089 | 363859 |
| 15 | idolforums.com American Idol series forums | 21469749 | 94716 |
| 16 | Broadband reports Broadband connection and high speed lines discussion forums | 18162983 | 66131 |
| 17 | AnandTech Computer hardware message boards | 17643033 | 106651 |
| 18 | GoLiveWire Teen message boards | 16687691 | 222558 |
| 19 | Money Saving Expert Money Saving discussion board | 16128659 | 594320 |
| 20 | Wizaz.pl Women message board (in Polish) | 14809696 | 458847 |
| 21 | Mothering.com Parenting and pregnancy message boards | 14177602 | 143591 |
| 22 | JJB NSYNC fans message board | 14035448 | 31664 |
| 23 | Slashdot Technology news commenting website | 13988544 | 880049 |
| 24 | Fat Wallet Hot deals and coupons forums | 13909716 | 1290671 |
| 25 | Purse Forum Purse and handbag discussion forum | 12913138 | 230714 |
| 26 | WTA world Women's Tennis message boards | 12163195 | 53196 |
| 27 | AdultFriendFinder Adult weblog community | 11297862 | 390587 |
| 28 | WebPiraat.nl General discussion (in dutch) | 10320908 | 21924 |
| 29 | HOTorNOT.de Picture rating forums (in german) | 9726162 | 808468 |
| 30 | Sex Narod Adult forums (in Russian) | 9632903 | 424283 |
| 31 | Red Flag Deals Hot deals and freebies message boards | 8572680 | 269328 |
| 32 | Urban 75 General discussion message board | 8319815 | 46545 |
| 33 | Student Doctor Forum for students in the health care industry | 8289874 | 218050 |
| 34 | Politica Online Politics forums (italian) | 8284306 | 26712 |
| 35 | Scholieren Community for Dutch highschool students | 8196177 | 98538 |
| 36 | British Expats British expatriates community forums | 7618034 | 112198 |
| 37 | Above Top Secret Government secrets and conspiracy discussion forums | 7445050 | 178627 |
| 38 | Comlive Entertainment discussions (in French) | 7285264 | 71422 |
| 39 | StereoKiller Music message boards | 7177511 | 243611 |
| 40 | In the mix Australian music and clubbing discussion forums | 6582146 | 173506 |
| 41 | Shroomery Psychoactive mushroom cultivation forum | 6559810 | 50075 |
| 42 | Catholic.com Catholic message boards | 6233564 | 173714 |
| 43 | Tatli Askim Wedding forum (in Turkish) | 6181103 | 149180 |
| 44 | SOHH.com Hip Hop, culture and politics message boards | 6171095 | 74190 |
| 45 | Stormfront White nationalist community | 6068723 | 166440 |
| 46 | Overgrow Forums - discontinued Marijuana growing discussion | 6016336 | 133844 |
| 47 | Fucked Company Off-topic message boards | 5947400 | 69900 |
| 48 | atforumz General interest forum centering on musical artists and political debate | 5887654 | 38817 |
| 49 | Slick Deals Hot deals and coupons message boards | 5852335 | 550214 |
| 50 | Democratic Underground American left-wing political forum | 5725051 | 82408 |
| 51 | Free Ratio Freethought and rationalism forum | 5723800 | 19955 |
| 52 | The Fashion Spot Fashion industry message boards | 5559533 | 60785 |
| 53 | Entensity Adult message boards | 5491251 | 11025 |
| 54 | Doctor Amor Love, sex and relationships forum (spanish) | 5416013 | 25564 |
| 55 | Vogue Australia Vogue magazine message board | 5328524 | 150340 |
| 56 | Living With Style General discussion message board | 5310562 | 83482 |
| 57 | Randi.org Science, society and skepticism forums | 5308474 | 22678 |
| 58 | Internet Infidels Philosophical and debates forums | 5231675 | 20971 |
| 59 | Asian Fanatics Asian entertainment and lifestyle forum | 5069252 | 196266 |
| 60 | Prison Talk Prison and prisoner support, information and assistance community | 5033330 | 214087 |
| 61 | Planet Liebe Love and relationships forum (in german) | 4818695 | 72136 |
| 62 | Do You Look Good Picture rating forums (in French) | 4777932 | 53010 |
| 63 | What Boys Want Cars and babes forums | 4759526 | 125324 |
| 64 | Howard Stern Bulletin Board Howard Stern's official fan forum | 4747007 | 993932 |
| 65 | Nairaland Nigeria message board | 4683107 | 429757 |
| 66 | Go Fuck Yourself Adult business and webmaster discussion | 4640820 | 34270 |
| 67 | Politics.be Belgian forum for political topics (in Dutch) | 4505553 | 15775 |
| 68 | Perspectives Us politics and society forums | 4372155 | 73116 |
| 69 | Wacken Wacken heavy metal open air discussion forums | 4296577 | 49806 |
| 70 | Kvinneguiden Norvegian forums dedicated to women talk | 4260216 | 12769 |
| 71 | Party East Carolina East Carolina students message board | 4232050 | 32448 |
| 72 | Just us Boys Gay community | 4187226 | 109447 |
| 73 | Asia Finest Asia discussion forums | 4163166 | 100648 |
| 74 | Rapture Ready Christian message board | 3886732 | 21947 |
| 75 | Ttvnol Vietnamese general interest board | 3815566 | 108642 |
| 76 | Eastern US Weather East Coast Weather discussion board | 3690077 | 10332 |
| 77 | RateMyBody Picture rating and dating website forums | 3687300 | 134645 |
| 78 | Lipstick Alley Lipstick discussion board | 3674568 | 41290 |
| 79 | Timebomb 2000 World news and events discussion forums | 3587514 | 4406 |
| 80 | Hip Forums Hippies message boards | 3536329 | 86457 |
| 81 | Bored of Studies Students message boards | 3469085 | 283827 |
| 82 | The Wolf Web North Carolina State University forum | 3462350 | 12601 |
| 83 | Privet Community dedicated to Russians integration in the US | 3455579 | 52539 |
| 84 | Ummah Islamic discussion forum | 3439263 | 49507 |
| 85 | TeenSpot.com Teens general discussion boards | 3378549 | 54427 |
| 86 | Russian LA Forum about life in Los Angeles (in russian) | 3342217 | 70736 |
| 87 | Free Lunch Room Freebies and free sites forum | 3255659 | 137385 |
| 88 | MysticWicks Online pagan community and pagan forums | 3241926 | 19723 |
| 89 | Peoples Forum General discussion and debates forum | 3240572 | 12711 |
| 90 | Alternative Nation Alternative community | 3238557 | 21096 |
| 91 | Thai Visa Forum for expats living, working and travelling to Thailand | 3153545 | 87145 |
| 92 | ElForro.com General discussion forum (in Spanish) | 3140657 | 809362 |
| 93 | Christian Guitar Resources Christian music fans discussion board | 3124222 | 170435 |
| 94 | Sign on San Diego Forum for a San Diego newspaper | 3098423 | 11528 |
| 95 | SammyBoy Forum Singapore-Asian commercial sex forum | 3067783 | 121366 |
| 96 | Rue montgallet Computer prices comparison forums (in french) | 3046654 | 81941 |
| 97 | Unexplained Mysteries Mysteries and conspiracy forums | 3035022 | 76505 |
| 98 | AskMen Askmen.com (online men magazine) forums | 3030653 | 34990 |
| 99 | Govteen Teen life message boards | 3010433 | 35338 |
| 100 | Newgrounds Humor and chit-chat forums | 2842903 | 1208788 |
| 101 | Alternate History History discussion board | 2824280 | 9009 |
| 102 | Able2know General knowledge exchange forums | 2815662 | 75470 |
| 103 | Bus web board Discussion board related to self-injury | 2743852 | 12864 |
| 104 | Maroc.nl Forum for people from marocco living in the Netherlands (in dutch) | 2728479 | 58188 |
| 105 | Meteo Network Italian meteorology network | 2673661 | 5125 |
| 106 | Gurn.net UK clubbing message boards | 2662126 | 23322 |
| 107 | Theology Web Religion and theology forums | 2653673 | 17659 |
| 108 | Futura Science French science discussion forum | 2637577 | 327718 |
| 109 | Miresici.ro Wedding forums (in Romanian) | 2586206 | 50627 |
| 110 | Tilted Forum Project General discussion message board | 2567439 | 100232 |
| 111 | Jehovahs witness Jehovahs witnesses community | 2496442 | 25516 |
| 112 | Heaven Games History, gaming and roleplaying forums | 2481107 | 228819 |
| 113 | Main Board General discussion forum (in Turkish) | 2478719 | 175313 |
| 114 | Buzzlife Music discussion forum | 2462970 | 32685 |
| 115 | Profile Heaven Picture rating and dating forum | 2447800 | 351948 |
| 116 | Brown Pride Forums for California's Mexican community | 2428499 | 46709 |
| 117 | Krwetatnt.net Arabic general discussion forum | 2358560 | 350850 |
| 118 | Alternative Nation Alternative culture and entertainment forums | 2355750 | 13313 |
| 119 | Hyster Sisters Women community for issues related to GYN diseases and complications | 2346519 | 128967 |
| 120 | Esoterik Forum Esoterism and astrology forums (Austria) | 2346064 | 34896 |
| 121 | FromUz Uzbekistan expatriates forum | 2331300 | 57510 |
| 122 | ISS Forums Sneakers message board | 2316770 | 105389 |
| 123 | Canada.ru Forum about life in Canada (in Russian) | 2298575 | 56389 |
| 124 | LoveShack Peer-to-peer interpersonal relationship advice and assistance center | 2293533 | 76419 |
| 125 | WAHM.com Work-at-home moms forum | 2267094 | 82199 |
| 126 | Kuraev.ru Russian forum for men and religion discussion | 2233355 | 27814 |
| 127 | Club Planet Clubbing in the US message boards | 2210483 | 190240 |
| 128 | Meteo Red Spanish Forum about meteorology | 2193038 | 10841 |
| 129 | Zenhex General discussion forums | 2187134 | 8556729 |
| 130 | StileProject Adult message boards | 2150850 | 12832 |
| 131 | NeonTeen - discontinued Teen general discussion forums | 2120311 | 15806 |
| 132 | LPSG Large Penis Support Group forums | 2113887 | 408553 |
| 133 | Hallagulla Pakistani general discussion forum | 2107121 | 9586 |
| 134 | Forum Owisko Polish general discussion forum | 2101292 | 91112 |
| 135 | Nation States - discontinued Nation simulation game forums | 2042674 | 112438 |
| 136 | Gushup Pakistani general discussion forums | 2035300 | 30640 |
| 137 | Vrouwen Power Dutch forum for women | 2031838 | 2929 |
| 138 | IhAv.NET Offtopic community | 2020353 | 556211 |
| 139 | Darkness forum Vampires and darkness message boards | 2017701 | 15304 |
| 140 | Argue with Everyone Political Forums | 2001505 | 15816 |
| 141 | Quarter to three forums Gaming forums | 1969253 | 23146 |
| 142 | Ask Me Help Desk Ask the experts community | 1957613 | 689997 |
| 143 | SportsJournalists.com Discussion of issues by sports reporters | 1921435 | 10075 |
| 144 | The Site General discussion for young people | 1902525 | 36561 |
| 145 | Tarot Forum Aeclectic Tarot Forum | 1870868 | 20601 |
| 146 | Dans le ventre de maman Parenting and pregnancy message board (in french) | 1857514 | 7876 |
| 147 | Crackwhore message board Vampirefreaks.com gothic discussion boards | 1829552 | 385 |
| 148 | Immigration Portal Immigration related discussions | 1827478 | 188449 |
| 149 | We Beg to Differ Debates message board | 1826357 | 1136 |
| 150 | Discuss Anything General discussion forum | 1825070 | 12320 |
| 151 | Cannabis Forums Cannabis discussion forum | 1801439 | 147049 |
| 152 | Big Big Savings Special deals message boards | 1793884 | 56391 |
| 153 | Crossdressers.com Crossdressing message board | 1765749 | 38206 |
| 154 | Strange Talk Iowa State University students community | 1755465 | 5739 |
| 155 | Protest Warrior Right wing political discussion forum | 1735600 | 14474 |
| 156 | FictionAlley Park Fiction stories writing message boards | 1734029 | 113681 |
| 157 | Authentic Forum Clothing and Fashion message board | 1733309 | 27135 |
| 158 | Drogen Forum Drugs forum (in german) | 1731136 | 4165 |
| 159 | Religious Forum A discussion board about religions | 1730596 | 20762 |
| 160 | Shia chat Online Muslim Community | 1729223 | 17524 |
| 161 | Toytown Germany A forum for US and english expatriates in Germany | 1721696 | 68934 |
| 162 | CheapAssGamer Video games deals forums | 1668743 | 48846 |
| 163 | CoachT Tenessee high school sports forums | 1666972 | 64450 |
| 164 | Beauty Board Beauty and welness discussion forums (in German) | 1663799 | 7826 |
| 165 | Honest Forum Fashion and denim message board | 1648483 | 38147 |
| 166 | Torch the Bridge Teen message board | 1646701 | 1286 |
| 167 | MathLinks Mathematical community | 1632660 | 72280 |
| 168 | Bible Forums Bible discussion board | 1618319 | 37270 |
| 169 | Hot Coupon World Shopping and hot deals forums | 1609367 | 143368 |
| 170 | Russian Italy Forum about life in Italy (in russian) | 1586559 | 9562 |
| 171 | BPAL Madness! Bpal oils discussion and reviews | 1584694 | 18014 |
| 172 | Loving You Love and romance forums | 1514919 | 148819 |
| 173 | Slacker Central General discussion forum | 1485059 | 3745 |
| 174 | Afghanistan War Global Discussion Forum | 1464572 | 1916 |
| 175 | Politics Forum Politics discussion board | 1459305 | 7440 |
| 176 | Flopclass Antwerp (Belgium) university students forum (in dutch) | 1444037 | 6100 |
| 177 | Pravda.ru Russian general discussion forum (in english) | 1440110 | 5411 |
| 178 | Rolex Forums Rolex watches message board | 1421025 | 30626 |
| 179 | Behigh.org Russian psychedelic forum | 1410235 | 9957 |
| 180 | Storm2k Weather discussion forums | 1405630 | 11719 |
| 181 | Spankmag Youth general discussion | 1404767 | 14947 |
| 182 | Whistle stopper Political Discussions | 1396943 | 23201 |
| 183 | BNN A forum of public broadcaster BNN | 1373155 | 13358 |
| 184 | Dark forum General discussion message boards | 1349072 | 10432 |
| 185 | Nightclubber Argentina clubbing community | 1315358 | 114250 |
| 186 | DealTaker.com Deals and coupons discussion board | 1309584 | 231617 |
| 187 | Dimensions Forums Dimensions magazine message boards | 1289607 | 42667 |
| 188 | Got apex PC hardware and software discussion | 1289475 | 33938 |
| 189 | GottaDeal.com Hot Deals message boards | 1244171 | 182301 |
| 190 | Islamica web Discussion forum for Muslim youth | 1234875 | 10603 |
| 191 | Hobbyschneiderin Sewing and knitting message board (in German) | 1226983 | 54304 |
| 192 | So asians Asians Community | 1226108 | 30542 |
| 193 | Christian Teen Forum Forums for christian teenagers | 1222247 | 16992 |
| 194 | E-Sangha Buddhism Forum | 1215898 | 58670 |
| 195 | Garden's Cure Marijuana growing forums | 1209794 | 39971 |
| 196 | P45rant General discussion forums | 1205800 | 6255 |
| 197 | Psych Central Psychotherapy and mental health forums | 1199936 | 91271 |
| 198 | igoo.com General discussion forum | 1194305 | 19442 |
| 199 | Liberty Forum General interest forum | 1185300 | 3865 |
| 200 | MNVibe Electronic dance music discussion board | 1167563 | 9571 |
| 201 | Pow Wows Native americans community | 1167345 | 66201 |
| 202 | Dance Zone Brazilian dance forums | 1163674 | 20134 |
| 203 | Monticello Nationalists and patriots community | 1159350 | 53317 |
| 204 | Hashkafah Orthodox Jewish discussion forums | 1133163 | 2780 |
| 205 | Nova boards - discontinued Teen, high school and college community | 1118193 | 9231 |
| 206 | ValueMD Medical schools forum | 1116493 | 108878 |
| 207 | Bet.com Black Entertainment Television message boards | 1104200 | 154756 |
| 208 | Enjoy ya'self Adult forum | 1096515 | 12578 |
| 209 | Night Club City Nightlife and clubbing forums | 1086704 | 6428 |
| 210 | El Brollo Mexican students forum | 1086181 | 116981 |
| 211 | InFrance.ru Forum for Russian expatriates in France | 1074261 | 21724 |
| 212 | Forum Voissa Sexuality discussion forum (in French) | 1072286 | 172586 |
| 213 | Freak Forum Norwegian computer discussion forum | 1068454 | 40264 |
| 214 | Asylum Nation General interest community | 1055600 | 6363 |
| 215 | Canada KA Canadian forums | 1047562 | 28803 |
| 216 | Revolutionary Left Left wing political forum | 1040371 | 7724 |
| 217 | British Born Chinese A forum for Chinese living in the UK | 1029429 | 8985 |
| 218 | Brunei Student Brunei Darussalam student community | 1024050 | 4071 |
| 219 | Diginights German clubbing forums | 1023504 | 6028 |
| 220 | PhatMass Catholics message boards | 1023278 | 3002 |
| 221 | Firehouse Firefighting Discussion Board | 992905 | 203168 |
| 222 | Reseller Ratings Computer hardware discussion board | 988551 | 277998 |
| 223 | Gatecrasher - discontinued UK based clubbing discussion forum | 973921 | 8541 |
| 224 | Basenotes Fragrances and perfumes forum | 971232 | 36030 |
| 225 | Pakistani Defence Forum A Pakistani community on defence and politics | 942028 | 8115 |
| 226 | Men's Almanac Men discussion forum | 924575 | 2239 |
| 227 | DreamTeamMoney Money making forums | 921241 | 64269 |
| 228 | Zjam Zboard Religion and christianity forum | 915938 | 2725 |
| 229 | MySpace Social networking and dating site forums | 912500 | 4150200 |
| 230 | Farit.ru Forum about life in Ufa (in russian) | 907402 | 46418 |
| 231 | BlaqBoard General discussion forum | 906552 | 4733 |
| 232 | Axis History History forum | 906418 | 19725 |
| 233 | Cool Teens Teens message boards | 899972 | 35056 |
| 234 | Mistress Destiny Female domination adult fetish forum | 891254 | 96153 |
| 235 | Leerlingen Community for Dutch students | 878208 | 25672 |
| 236 | The Orange Room Lebanese politicx forum | 867601 | 19372 |
| 237 | Yahooka - discontinued Marijuana growers & user community | 865039 | 7324 |
| 238 | Haxed Forums English general interest community | 860575 | 7449 |
| 239 | Channel 4 UK based general discussion forums | 852300 | 46853 |
| 240 | Israel Forum Forum about life in Israel (in Russian) | 850313 | 9013 |
| 241 | WTF Rating and debate forums | 843326 | 19087 |
| 242 | US Politics Online A US political discussion forum. | 830092 | 3642 |
| 243 | The Royal Forums Royal families discussion forum | 821746 | 36251 |
| 244 | Auswanderer Forum for german expatriates in the US | 812145 | 19668 |
| 245 | WHQ Foren General military discussions (in german) | 801714 | 3323 |
| 246 | Audarya Fellowship Spiritual discussion forums for Vedic (Hindu) traditions | 793083 | 7206 |
| 247 | Japan Forum Japanese culture forums | 777883 | 60531 |
| 248 | XForums General discussion message boards | 763427 | 4406 |
| 249 | No PC forums Conservatives and Libertarians political forum | 754326 | 835 |
| 250 | Dilforum Turkish learning forum | 751699 | 72103 |
| 251 | Byggahus Construction and architecture forums (in Swedish) | 740321 | 51609 |
| 252 | DR1 Dominican Republic forums | 735574 | 56274 |
| 253 | Orlovi Serbian expatriates forum (in French) | 725311 | 3165 |
| 254 | John Kerry - discontinued John Kerry message boards | 719833 | 43391 |
| 255 | Socionics Forum about socionics (in russian) | 718941 | 3379 |
| 256 | Ang's place Relationships and spirituality message boards | 705363 | 293 |
| 257 | ClemsonTalk Clemson University forums | 704388 | 2969 |
| 258 | Fast Seduction Pickup and seduction forums | 704348 | 45744 |
| 259 | Languish General discussion message board | 697515 | 700 |
| 260 | Rouseindahouse Teen Forums Teen message boards | 695425 | 23247 |
| 261 | Someplace Somewhere Philosophy and art community | 691867 | 845 |
| 262 | Emergency Broadcast Network General interest board centering on humor, debate, and poetry | 688110 | 549 |
| 263 | Twinteresting A message board about twins | 687501 | 708 |
| 264 | Sold F Swedish military forum | 685920 | 6506 |
| 265 | Cross-X Politics and debate forums | 684466 | 45136 |
| 266 | 80s Xchange 80s decade fans online community | 680191 | 14717 |
| 267 | Mauisun Anti narcotics discussion board | 670837 | 35677 |
| 268 | HippyMom Women community | 668358 | 523 |
| 269 | A Full Cup Coupons, refunds and hot deals forum | 667251 | 47473 |
| 270 | World Affairs Politics discussion board | 666595 | 11135 |
| 271 | Sex Woordenboek Sex message boards (in Dutch) | 661491 | 28568 |
| 272 | Grace Centered Christian forums | 656988 | 10444 |
| 273 | L'empire General discussion (in french) | 653697 | 1737 |
| 274 | Degrassi Boards Degrassi fans message board | 651086 | 14654 |
| 275 | In Review News discussion forum | 648430 | 95695 |
| 276 | Pacific Internet forums General discussion message boards (based in Singapore) | 636999 | 345482 |
| 277 | Avon - discontinued General discussion message boards | 635763 | 6169 |
| 278 | The Attraction Forums Dating advice forums | 634908 | 123697 |
| 279 | WBS.net - discontinued General discussion message boards | 625739 | 9072 |
| 280 | Early Retirement Retired lifestyle forum | 612889 | 8951 |
| 281 | Skadi Discussion board for germanics | 611884 | 34606 |
| 282 | Mercury Server Music and DJ forum | 594260 | 2624 |
| 283 | Destee Black people community | 582738 | 23866 |
| 284 | PASS support boards Post abortion support forums | 581038 | 9889 |
| 285 | Teleboards Teens and students message boards | 579854 | 29206 |
| 286 | Bladi Moroccan general forum (in french) | 557008 | 42429 |
| 287 | Depression Forums Mental health forums | 552035 | 34007 |
| 288 | Military Quotes Military forum | 551290 | 10035 |
| 289 | Accrington Web Accrington (UK) local forums | 529335 | 13991 |
| 290 | Aim Girl Girls message boards | 509021 | 65015 |
| 291 | Wired Fire News and review community | 493646 | 2429 |
| 292 | Gamingforce Video games forum | 409456 | 22426 |
| 293 | Sonlight Christian homeschool discussion board | 300815 | 11513 |
| 294 | Shinra Online General discussion board | 288009 | 11043 |
| 295 | Tangled Clubbing message boards | 240147 | 2377 |
| 296 | Solid 07 Korean pop culture community | 180814 | 17762 |
| 297 | International Coverup Punk music message board | 164010 | 3759 |
| 298 | Meez Teen avatar website community | 0 | 0 |