| Rank | Board name and description | Posts | Members |
|---|
| 1 | IMobile
Mobile phones community (in chinese) | 28531648 | 8399566 |
| 2 | DP review
Digital photography forums | 22278464 | 570115 |
| 3 | Slashdot
Technology news commenting website | 13988544 | 880049 |
| 4 | Howard Forums
Mobile phones discussion boards | 10737160 | 823653 |
| 5 | The Straight Dope
Cecil Adams' weekly question and answer column message boards | 8329348 | 76467 |
| 6 | Giga.de
Computer and internet message board (in german) | 6561468 | 1121643 |
| 7 | Urban 75
General discussion message board | 5824080 | 40436 |
| 8 | Photography on the Net
Canon digital photography forums | 5436184 | 146984 |
| 9 | TurkeyForum
Satellite technology discussions (in turkish) | 4787237 | 339580 |
| 10 | Et8
Technology message boards (in chinese) | 4723993 | 17096 |
| 11 | Elektroda.pl
Polish electronics forum | 4462365 | 468359 |
| 12 | Above Top Secret
Government secrets and conspiracy discussion forums | 4207938 | 137404 |
| 13 | Randi.org
Science, society and skepticism forums | 3672325 | 17199 |
| 14 | Club Snap
Photography message boards | 3421581 | 54035 |
| 15 | Onliner.by
Forum about mobile technologies in Belarus (in Russian) | 3386395 | 130725 |
| 16 | DSLR-Forum
German DSLR Forum | 3166355 | 111576 |
| 17 | GSM Forum
GSM and mobile phone message boards | 3122344 | 768508 |
| 18 | Telefon Treff
German mobile phones community | 3041180 | 145684 |
| 19 | PurePC.pl
Electronics message board | 2840081 | 54692 |
| 20 | Head-Fi
High-end headphones discussion forum | 2645779 | 49704 |
| 21 | Techzone
Forum about computers and technology | 2642250 | 100397 |
| 22 | VIP 600
Technology message boards (in Arabic) | 2590816 | 256722 |
| 23 | Photo4u.it
Italian photo community | 2528485 | 31237 |
| 24 | Eastern US Weather
East Coast Weather discussion board | 2487952 | 8099 |
| 25 | Forum Ponsel
Indonesian technology forums | 2344920 | 102695 |
| 26 | WCM Online
Austrian computer and technology forum | 2262151 | 40354 |
| 27 | Esato
Sony Ericsson mobile phones community | 2221133 | 152682 |
| 28 | Laneros
Technology forums (in Spanish) | 2042916 | 182960 |
| 29 | My Phone
Mobile phones discussion board (in greek) | 1942582 | 100761 |
| 30 | L'île des mathématiques
Mathematics Forum | 1841524 | 75279 |
| 31 | Belgium Digital
Digital photography message board (in dutch) | 1830603 | 18411 |
| 32 | Chile Hardware
Computer hardware forums (in Spanish) | 1815358 | 62222 |
| 33 | Min Hembio
Swedish forum for home cinema and electronics. | 1796259 | 110135 |
| 34 | SciForums
Science discussion forums | 1753447 | 30317 |
| 35 | Meteo Red
Spanish Forum about meteorology | 1713081 | 9103 |
| 36 | Meteo Network
Italian meteorology network | 1672365 | 3698 |
| 37 | Futura Science
French science discussion forum | 1666567 | 209544 |
| 38 | BrightHand
PDA and Smartphone Forums | 1642057 | 113018 |
| 39 | Egel Forum
General technology forum (in spanish) | 1600126 | 34414 |
| 40 | Physics Forums
Science, physics and maths community | 1581217 | 96189 |
| 41 | Planet.ee
Technical discussion forum (in estonian) | 1494449 | 8419 |
| 42 | AV Magazine
Italian Audio/Video message board | 1415244 | 36600 |
| 43 | IP mart forum
Symbian and other mobile system forums | 1279966 | 737742 |
| 44 | Digital Worldz
Digital devices forum | 1255518 | 36195 |
| 45 | Pocket Navigation
Navigation systems forum (in german) | 1226873 | 92869 |
| 46 | Bad Astronomy and Universe
Astronomy and Universe message board | 1216456 | 34698 |
| 47 | Geyiq
Turkish entertainment forum | 1163680 | 31278 |
| 48 | MP3Car
Car computers forum | 1163488 | 93101 |
| 49 | The Photo Forum
Photographers community | 1081398 | 30276 |
| 50 | Foro Powers
Technology forums (in spanish) | 1080012 | 48479 |
| 51 | Ask Me Help Desk
Ask the experts community | 958595 | 335852 |
| 52 | Mac City Net
Mac and iPod Italian forum | 929898 | 58051 |
| 53 | Blackberry Forums
Blackberry owners community | 913159 | 197197 |
| 54 | Ipod Lounge
Ipod discussion and resource board | 898548 | 93945 |
| 55 | Handykult
Mobile phones message boards (in german) | 828839 | 93808 |
| 56 | Sudhian Forums
Electronics message board | 825500 | 54641 |
| 57 | 1src
Palm and PDA message board | 781813 | 96258 |
| 58 | Teknoloji Televizyonu
Technology forum in Turkish | 772245 | 191567 |
| 59 | Socionics
Forum about socionics (in russian) | 718941 | 3379 |
| 60 | Cell Phone Forums
Message board about cell phones | 708242 | 152578 |
| 61 | Pinstack
Blackberry Forums | 677809 | 367137 |
| 62 | Ön Sayfa Community
Satellite technology discussions (in turkish) | 634632 | 49104 |
| 63 | Polish Elite Board
Technology discussion forum (in Polish) | 609113 | 706173 |
| 64 | CNET
Technology and software message boards | 589420 | 19866 |
| 65 | Symbianize
Mobile phones and technology forums | 553592 | 31567 |
| 66 | Maxicep
Cellphones and smartphones forums (in Turkish) | 534045 | 216344 |
| 67 | Funender
Electronics discussion board | 524563 | 20321 |
| 68 | WebTurkiye Forum
Turkish computing forum | 495507 | 55123 |
| 69 | BizimUydu
BizimUydu satellite forum | 263724 | 4697 |
| 70 | Austech
Australian technology forums | 16475 | 2511 |
| 71 | Miccoms Community
German mobile phones community | 10394 | 138 |
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