In terms of online hospital registration booking, hospital registration booking platform and commercial registration booking platform keep improving to boost the market development, with the utilization ratio of online hospital registration booking increased from 8.3% to 10.4%. In terms of online medical consultation, several Internet platforms with certain scale have formed and started to expand business into offline medical services after owning financial strength. For example, Chunyu Doctor, Dingxiangyuan, Pingan Doctor, Xingren Doctor and other online medical consultation platforms have opened offline medical services. As online drug retail services are kept under strict supervision, the O2O model is becoming the development trend of medical e-commerce. Since August 1, 2016, the pilot online drug retail via third-party Internet platforms has been brought to a halt. Strict supervision policies over drug retail will facilitate offline drugstores in building online self-operating channels and medical e-commerce platforms in transition to O2O model. Therefore, accountabilities of platforms and physical drugstores will be clarified, drug safety will be ensured and supervision costs will be cut. In addition, online medical services have accumulated enormous data and the field of medical big data is faced with both opportunities and challenges. In 2016, Opinions of the General Office of the State Council on Promoting and Regulating the Development of Healthcare Big Data Application was released to provide the policy environment for the development of medical big data. The capital market driven by the policy has given high priority to those enterprises engaged in medical information and medical data services, including Shanghai Kyee Technology Co., Ltd. and Sipai (Beijing) Network Technology Co., Ltd., whose financing scales exceed RMB 10 million. Still, the field of medical big data is confronted with many challenges such as inconsistent standards and complicated data structure. 6.3 Online taxi/car booking Up to December 2016, China had 225 million users of online taxi booking service who increased by 66.13 million or 41.7% over the first half of 2016 and accounted for 30.7% of all netizens, up by 8.4 percentage points from the middle of 2016; it had also 168 million users of 22 online car booking services who increased by 46.16 million or 37.9% over the first half of 2016 22 Online car booking services include private car booking and carpooling services. 8383 The 39th Statistical Report on Internet Development in China