Youtube

Quora - A place to share knowledge and better understand the world

Pinterest照片墙。Discover recipes, home ideas, style inspiration and other ideas to try.

Instagram社交媒体软件。Welcome back to Instagram. Sign in to check out what your friends, family & interests have been capturing & sharing around the world.

Twitter

Snapchat lets you easily talk with friends, view Live Stories from around the world, and explore news in Discover. Life's more fun when you live in the moment!

流量全球第4,类似国内的“天涯+贴吧 。Reddit is a network of communities based on peoples interests. Find communities youre interested in, and become part of an online community!