Diablo® III

Many Diablo fansites regularly feature awesome updates, articles, guides, fan art, videos and other content, including various useful tools and resources, which are beneficial to the entire Diablo community. If you wish to stay updated on anything Diablo related, be sure to check out the list of official fansites below.

English:
D3Expert.com: http://www.d3expert.com/
Diablo3X.com: http://diablo3x.com/
D3Cauldron: http://d3cauldron.com/

Other European Languages:

Bulgarian
Diablo 3 Bulgaria: http://www.d3bg.org

Czech
DiabloFans.cz: http://www.diablofans.cz/

Danish
Diablo3x.dk: http://www.diablo3x.dk

Hungarian
Diablo III Hungary: http://diablo3.hu

Serbia, Croatia, Slovenia, Bosnia & Herzegovina, Montenegro and Macedonia
AdriaCraft: http://www.adriacraft.net/diablo/

Swedish:
Svenskadiablo.se: http://www.svenskadiablo.se

Turkish
Diablo Fan Turkiye: http://www.diablofanturkiye.com/

If you are looking for content in one of the other languages officially supported by Blizzard, please check the list below:

German - http://eu.battle.net/d3/de/forum/topic/3124532630
French - http://eu.battle.net/d3/fr/forum/topic/3124472662
Spanish - http://eu.battle.net/d3/es/forum/topic/3124802561
Russian - http://eu.battle.net/d3/ru/forum/topic/3124472673
Italian - http://eu.battle.net/d3/it/forum/topic/3124772607
Polish - http://eu.battle.net/d3/pl/forum/topic/3124802563