Zhihu.com a dominated online player in China’s knowledge sharing economy
knowledge sharing
Wikpedia – can the pioneer stay relevant?
Wikipedia pioneered collective intelligence online over a decade ago. However, in a changing online world, many question the relevance of Wikipedia going forward.
Quora: Quality and profitability are still open questions
Quora has turned to the crowds to create a high-quality Q&A site, but maintaining quality and building profitability may remain challenging.