Sina Weibo China's microblogging market based on active users and 86.6% based on browsing time over competitors such as Tencent Weibo and Baidu's services. The top 100 users had over 485 million followers combined. Furthermore, Sina said that more than 5,000 companies and 2,700 media organizations in China use Sina Weibo. The site is maintained by a growing microblogging department of 200 employees responsible for technology, design, operations, and marketing. Sina executives invited and persuaded many Chinese celebrities to join the platform. The users of Sina Weibo include Asian celebrities, movie stars, singers, famous business and media figures, athletes, scholars, artists, organizations,
Han Jian (Weibo warlord) to seize nearby Heyang Circuit (河陽, headquartered in modern Jiaozuo, Henan), took 30,000 soldiers and attacked Heyang's military governor Zhuge Shuang at Xiuwu (修武, in modern Jiaozuo). Zhuge abandoned Xiuwu, and Han left forces to defend Xiuwu, before turning north to pillage Xing (邢州, in modern Xingtai, Hebei) and Ming (洺州, in modern Handan) Prefectures (both belonging to Zhaoyi Circuit (昭義, headquartered in modern Changzhi, Shanxi)); he then returned to Weibo. Later in the year, Han attacked Yun Prefecture (鄆州, in modern Tai'an, Shandong), the capital of Tianping Circuit (天平), and Tianping's military governor Cao Cunshi (曹存實) died in battle.