| Rank | Board name and description | Posts | Members |
|---|
| 1 | IMobile
Mobile phones community (in chinese) | 31277230 | 9591781 |
| 2 | DP review
Digital photography forums | 25751767 | 338318 |
| 3 | Slashdot
Technology news commenting website | 13988544 | 880049 |
| 4 | Howard Forums
Mobile phones discussion boards | 12917250 | 1053840 |
| 5 | The Straight Dope
Cecil Adams' weekly question and answer column message boards | 11691553 | 86621 |
| 6 | Photography on the Net
Canon digital photography forums | 8916131 | 220624 |
| 7 | Urban 75
General discussion message board | 8319815 | 46545 |
| 8 | Onliner.by
Forum about mobile technologies in Belarus (in Russian) | 7617928 | 204272 |
| 9 | Above Top Secret
Government secrets and conspiracy discussion forums | 7445050 | 178627 |
| 10 | Giga.de
Computer and internet message board (in german) | 6561468 | 1121643 |
| 11 | TurkeyForum
Satellite technology discussions (in turkish) | 6323584 | 421183 |
| 12 | Elektroda.pl
Polish electronics forum | 6299553 | 675538 |
| 13 | DSLR-Forum
German DSLR Forum | 5841474 | 198554 |
| 14 | Free Ratio
Freethought and rationalism forum | 5723800 | 19955 |
| 15 | Et8
Technology message boards (in chinese) | 5444389 | 17342 |
| 16 | Randi.org
Science, society and skepticism forums | 5308474 | 22678 |
| 17 | GSM Forum
GSM and mobile phone message boards | 4676734 | 1158387 |
| 18 | VIP 600
Technology message boards (in Arabic) | 4355881 | 455483 |
| 19 | Telefon Treff
German mobile phones community | 3896202 | 174331 |
| 20 | Eastern US Weather
East Coast Weather discussion board | 3690077 | 10332 |
| 21 | Photo4u.it
Italian photo community | 3616700 | 46922 |
| 22 | Techzone
Forum about computers and technology | 3589460 | 110811 |
| 23 | Club Snap
Photography message boards | 3421581 | 54035 |
| 24 | Chile Hardware
Computer hardware forums (in Spanish) | 3087182 | 136882 |
| 25 | PurePC.pl
Electronics message board | 2840081 | 54692 |
| 26 | Esato
Sony Ericsson mobile phones community | 2717002 | 192458 |
| 27 | Meteo Network
Italian meteorology network | 2673661 | 5125 |
| 28 | Head-Fi
High-end headphones discussion forum | 2645779 | 49704 |
| 29 | Futura Science
French science discussion forum | 2637577 | 327718 |
| 30 | L'île des mathématiques
Mathematics Forum | 2571730 | 86162 |
| 31 | Min Hembio
Swedish forum for home cinema and electronics. | 2539190 | 161786 |
| 32 | Belgium Digital
Digital photography message board (in dutch) | 2459307 | 30329 |
| 33 | My Phone
Mobile phones discussion board (in greek) | 2441067 | 127823 |
| 34 | Forum Ponsel
Indonesian technology forums | 2344920 | 102695 |
| 35 | SciForums
Science discussion forums | 2304383 | 56586 |
| 36 | Physics Forums
Science, physics and maths community | 2278941 | 169362 |
| 37 | WCM Online
Austrian computer and technology forum | 2262151 | 40354 |
| 38 | Meteo Red
Spanish Forum about meteorology | 2193038 | 10841 |
| 39 | AV Magazine
Italian Audio/Video message board | 2155390 | 73246 |
| 40 | Forum Owisko
Polish general discussion forum | 2101292 | 91112 |
| 41 | Laneros
Technology forums (in Spanish) | 2042916 | 182960 |
| 42 | IP mart forum
Symbian and other mobile system forums | 2023563 | 1313333 |
| 43 | IhAv.NET
Offtopic community | 2020353 | 556211 |
| 44 | Ask Me Help Desk
Ask the experts community | 1957613 | 689997 |
| 45 | BrightHand
PDA and Smartphone Forums | 1743939 | 128033 |
| 46 | MathLinks
Mathematical community | 1632660 | 72280 |
| 47 | Egel Forum
General technology forum (in spanish) | 1600126 | 34414 |
| 48 | Bad Astronomy and Universe
Astronomy and Universe message board | 1594823 | 66080 |
| 49 | The Photo Forum
Photographers community | 1591459 | 49165 |
| 50 | Planet.ee
Technical discussion forum (in estonian) | 1494449 | 8419 |
| 51 | Blackberry Forums
Blackberry owners community | 1485874 | 399263 |
| 52 | Digital Worldz
Digital devices forum | 1305605 | 38202 |
| 53 | MP3Car
Car computers forum | 1303703 | 121294 |
| 54 | Pocket Navigation
Navigation systems forum (in german) | 1226873 | 92869 |
| 55 | Polish Elite Board
Technology discussion forum (in Polish) | 1208864 | 1268641 |
| 56 | Psych Central
Psychotherapy and mental health forums | 1199936 | 91271 |
| 57 | Geyiq
Turkish entertainment forum | 1159953 | 33562 |
| 58 | Mac City Net
Mac and iPod Italian forum | 1083238 | 71811 |
| 59 | Foro Powers
Technology forums (in spanish) | 1080012 | 48479 |
| 60 | Handykult
Mobile phones message boards (in german) | 898675 | 133489 |
| 61 | Ipod Lounge
Ipod discussion and resource board | 898548 | 93945 |
| 62 | MacTalk
Apple and Mac forums | 888330 | 4850 |
| 63 | EH Mac
Mac, iPod and iPhone community | 867813 | 30148 |
| 64 | Photo Camel
Photo community | 867409 | 39050 |
| 65 | Sudhian Forums
Electronics message board | 846608 | 56214 |
| 66 | Forum Plasa
Indonesian general discussion forum | 809072 | 74273 |
| 67 | 1src
Palm and PDA message board | 807653 | 106991 |
| 68 | PentaxForums
Photography forums | 807007 | 18205 |
| 69 | Cell Phone Forums
Message board about cell phones | 782921 | 183203 |
| 70 | Teknoloji Televizyonu
Technology forum in Turkish | 772245 | 191567 |
| 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 | CNET
Technology and software message boards | 589420 | 19866 |
| 75 | Symbianize
Mobile phones and technology forums | 559098 | 31939 |
| 76 | Depression Forums
Mental health forums | 552035 | 34007 |
| 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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