4chan - 4chan is a simple image-based bulletin board where anyone can post comments and share images.
9GAG - 9GAG is the app for you to LOL, kill time and make new friends all around the world.
Reddit - Reddit gives you the best of the internet in one place. Get a constantly updating feed of breaking news, fun stories, pics, memes, and videos just for you.
iFunny - iFunny is a Fun Application that gives you a simple when you most need it.
Tildes - A non-profit community site driven by its users' interests
SaidIt.net - Saidit.net - say your truth.