As of September 2014, there were 1,350 active China e-commerce enterprise accounts on Weibo. And the top categories are clothing & accessory, fashion life and food & beverage.
Baidu is launching a URL shortening service dwz.cn. Users can type in a URL to have a shortened URL at dwz.cn or a custom shortened URL can be specified. Users can retrieve the original URL with shortened URL; and, DWZ.cn provides API for URL shortening service.