4chan - 4chan is a simple image-based bulletin board where anyone can post comments and share images.
Uforio - Uforio is an alternative client for Reddit.
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.
narwhal - Narwhal is a simple iOS app for reddit.
Tildes - A non-profit community site driven by its users' interests
Subdood - Browse reddit in clear view of your boss and the creepy guy staring at you right now