| Rank | Board name and description | Posts | Members |
|---|
| 1 | IMobile
Mobile phones community (in chinese) | 31277230 | 9591781 |
| 2 | DP review
Digital photography forums | 28120340 | 363010 |
| 3 | The Straight Dope
Cecil Adams' weekly question and answer column message boards | 14611259 | 128882 |
| 4 | Slashdot
Technology news commenting website | 13988544 | 880049 |
| 5 | Photography on the Net
Canon digital photography forums | 13574841 | 331445 |
| 6 | Onliner.by
Forum about mobile technologies in Belarus (in Russian) | 13466376 | 425081 |
| 7 | Howard Forums
Mobile phones discussion boards | 13434328 | 1113663 |
| 8 | Above Top Secret
Government secrets and conspiracy discussion forums | 9402961 | 201391 |
| 9 | Urban 75
General discussion message board | 9231910 | 48804 |
| 10 | DSLR-Forum
German DSLR Forum | 9218143 | 322205 |
| 11 | Elektroda.pl
Polish electronics forum | 9040405 | 1324890 |
| 12 | Randi.org
Science, society and skepticism forums | 7960224 | 29091 |
| 13 | TurkeyForum
Satellite technology discussions (in turkish) | 7710129 | 481833 |
| 14 | GSM Forum
GSM and mobile phone message boards | 7370591 | 1716929 |
| 15 | Free Ratio
Freethought and rationalism forum | 6573420 | 19504 |
| 16 | Giga.de
Computer and internet message board (in german) | 6561468 | 1121643 |
| 17 | Et8
Technology message boards (in chinese) | 5929952 | 18743 |
| 18 | VIP 600
Technology message boards (in Arabic) | 5201921 | 543389 |
| 19 | Chile Hardware
Computer hardware forums (in Spanish) | 5088735 | 406114 |
| 20 | Telefon Treff
German mobile phones community | 4714683 | 199615 |
| 21 | Photo4u.it
Italian photo community | 4379631 | 59676 |
| 22 | L'île des mathématiques
Mathematics Forum | 3851133 | 48258 |
| 23 | Eastern US Weather
East Coast Weather discussion board | 3690077 | 10332 |
| 24 | Futura Science
French science discussion forum | 3631256 | 518641 |
| 25 | Techzone
Forum about computers and technology | 3589460 | 110811 |
| 26 | Physics Forums
Science, physics and maths community | 3508930 | 332696 |
| 27 | Club Snap
Photography message boards | 3421581 | 54035 |
| 28 | Belgium Digital
Digital photography message board (in dutch) | 3404379 | 46011 |
| 29 | AV Magazine
Italian Audio/Video message board | 3355318 | 106950 |
| 30 | Min Hembio
Swedish forum for home cinema and electronics. | 3234839 | 214128 |
| 31 | Meteo Network
Italian meteorology network | 3132814 | 6650 |
| 32 | Esato
Sony Ericsson mobile phones community | 2989363 | 216081 |
| 33 | PurePC.pl
Electronics message board | 2840081 | 54692 |
| 34 | SciForums
Science discussion forums | 2771895 | 26867 |
| 35 | Meteo Red
Spanish Forum about meteorology | 2768549 | 15807 |
| 36 | Head-Fi
High-end headphones discussion forum | 2645779 | 49704 |
| 37 | IhAv.NET
Offtopic community | 2602814 | 727330 |
| 38 | Ask Me Help Desk
Ask the experts community | 2595192 | 881607 |
| 39 | IP mart forum
Symbian and other mobile system forums | 2487090 | 1608613 |
| 40 | My Phone
Mobile phones discussion board (in greek) | 2456899 | 138728 |
| 41 | Forum Ponsel
Indonesian technology forums | 2344920 | 102695 |
| 42 | WCM Online
Austrian computer and technology forum | 2262151 | 40354 |
| 43 | Psych Central
Psychotherapy and mental health forums | 2206853 | 169834 |
| 44 | Forum Owisko
Polish general discussion forum | 2101292 | 91112 |
| 45 | Laneros
Technology forums (in Spanish) | 2042916 | 182960 |
| 46 | The Photo Forum
Photographers community | 1988834 | 88398 |
| 47 | MathLinks
Mathematical community | 1793205 | 81428 |
| 48 | BrightHand
PDA and Smartphone Forums | 1773506 | 133642 |
| 49 | Blackberry Forums
Blackberry owners community | 1726156 | 575618 |
| 50 | Bad Astronomy and Universe
Astronomy and Universe message board | 1673893 | 77390 |
| 51 | Egel Forum
General technology forum (in spanish) | 1600126 | 34414 |
| 52 | Planet.ee
Technical discussion forum (in estonian) | 1494449 | 8419 |
| 53 | Photo Camel
Photo community | 1481765 | 57849 |
| 54 | MP3Car
Car computers forum | 1375278 | 138534 |
| 55 | Digital Worldz
Digital devices forum | 1305605 | 38202 |
| 56 | Pocket Navigation
Navigation systems forum (in german) | 1226873 | 92869 |
| 57 | Polish Elite Board
Technology discussion forum (in Polish) | 1208864 | 1268641 |
| 58 | Geyiq
Turkish entertainment forum | 1159953 | 33562 |
| 59 | EH Mac
Mac, iPod and iPhone community | 1128028 | 39022 |
| 60 | Mac City Net
Mac and iPod Italian forum | 1109082 | 75483 |
| 61 | Foro Powers
Technology forums (in spanish) | 1080012 | 48479 |
| 62 | MacTalk
Apple and Mac forums | 1056932 | 6651 |
| 63 | Handykult
Mobile phones message boards (in german) | 898675 | 133489 |
| 64 | Ipod Lounge
Ipod discussion and resource board | 898548 | 93945 |
| 65 | Sudhian Forums
Electronics message board | 849934 | 99257 |
| 66 | 1src
Palm and PDA message board | 811140 | 110020 |
| 67 | PentaxForums
Photography forums | 809125 | 18256 |
| 68 | Forum Plasa
Indonesian general discussion forum | 809072 | 74273 |
| 69 | Teknoloji Televizyonu
Technology forum in Turkish | 772245 | 191567 |
| 70 | Cell Phone Forums
Message board about cell phones | 761505 | 255419 |
| 71 | Socionics
Forum about socionics (in russian) | 718941 | 3379 |
| 72 | Pinstack
Blackberry Forums | 677809 | 367137 |
| 73 | Ön Sayfa Community
Satellite technology discussions (in turkish) | 637864 | 51680 |
| 74 | Depression Forums
Mental health forums | 615797 | 41078 |
| 75 | CNET
Technology and software message boards | 589420 | 19866 |
| 76 | Symbianize
Mobile phones and technology forums | 559098 | 31939 |
| 77 | Maxicep
Cellphones and smartphones forums (in Turkish) | 534045 | 216344 |
| 78 | Funender
Electronics discussion board | 524563 | 20321 |
| 79 | WebTurkiye Forum
Turkish computing forum | 495507 | 55123 |
| 80 | BizimUydu
BizimUydu satellite forum | 263724 | 4697 |
| 81 | Austech
Australian technology forums | 16475 | 2511 |
| 82 | Miccoms Community
German mobile phones community | 10394 | 138 |
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