AUDIO: China's social media revolutionMore than 300m people in China are now signed up to Sina Weibo, China's version of Twitter, and the service is heralding a new wave of self expression. Duncan Hewitt travelled around China to meet the people using social media.
Source: AUDIO: China's social media revolution (http://news.bbc.co.uk/today/hi/today/newsid_9739000/9739186.stm#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa)