SlideShare
Share & Discover Presentations with the world's largest professional content sharing community.
slideshare.net · 153,110
Newgrounds
A community of artists, game developers, musicians, voice actors and writers sharing the best of the web.
newgrounds.com · 23,562
Nabble
Create a free forum online with embeddable web apps in less than one minute.
nabble.com · 12,875
Boardhost
Create a free forum or message board with reliable, remotely hosted service.
boardhost.com · 3,870
Akiba-Online.com
Neo Otaku Community with a focus on anime, manga, games, and technology. Participate in various discussions and share media.
akiba-online.com · 1,963
C2.com
Interactive platform for published papers, original web pages, and various resources.
c2.com · 1,943
Sensible Endowment
A shared web blog community dedicated to being awesome.
sensibleendowment.com · 287
Devinity
Online community forums for discussions on gaming, technology, creative interests, world news, and more.
devinity.org · 144