Quora - A place to share knowledge and better understand the world
Quora 是知识沉淀和积累非常高效的社会化问答网站，是知乎 Copy to China的原型。在Quora能看一些在知乎不能聊的话题,Quora站外社交营销，Quora是全球流量最大的问答网站。
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!
Pinterest照片墙。Discover recipes, home ideas, style inspiration and other ideas to try.
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!
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.