The Shanghai-based company said its net income was $33.2 million in the second quarter compared with $10 million a year ago. Advertising revenue increased 12 percent year-on-year to $103.1 million.
In addition, Sina's CEO Charles Chao said that he expects the company's Weibo service to help generate more ad revenue in the following quarters.
"Our investment in Weibo.com is showing continued traffic momentum, which helps strengthen Sina's brand, media influence and high-end user reach as well as positions Sina to grow market share in online advertising," Chao said.
Sina started to sell advertising on Weibo in April.
gaoyuan@chinadaily.com.cn