The success of Quora and formspring.me in social information seeking area is an inspiration for QA sites, which haven’t evolved much for a long time.

Following the pioneer’s step, Zhihu(like Quora) becomes an overnight sensation in Chinese websphere, with many people of consequence actively asking and answering question there, including Kaifu Lee, the former Google China head who founded Innovation Works, Hong Bo, one of the most prominent internet observer in China, Yang Bo, founder of Douban.com and many other experts from various fields.

However, Quora isn’t the only answer to Social QA service, and it’s more serious with higher bars for users. For instance, only invited users can register and join in Quora now. The site has 547,000 users as of Jan 2011. On the other hand, Formspring.me which founded in Nov. 2009, now has a total of over 24 million users with over 3.5 million unique visitors every day. And yes, anyone can sign up here.

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Ben Jiang

Listener of startups, writer on tech. Maker of things, dreamer by choice.