Quora - questions and answers platform

Launched in June 2010, Quora combines knowledge sharing and social networking functions and focuses on providing high-quality answers to users.

Launched in June 2010, Quora combines knowledge sharing and social networking functions and focuses on providing high-quality answers to users, which is favored by investors. Besides topics, users can also pay attention to other users, provide topics or send private e-mails to them. The best answers will be selected through an easy voting mechanism and goes to the top of all answers.

The most controversial issue is that users can edit other users' answers. Charlie Cheever, the co-founder of Quora, said that as their users' identifications can be affirmative, they can provide their professional knowledge and give high-quality answers. Besides, the voting mechanism plays an important role of testing and balance.

Although Charlie Cheever said that the website still has a long way to go, it already shows great potential. It is estimated that Quora is worth 86 million dollars and it has over 500 thousand users.