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100 Fastest-Growing Tech Companies 

Our rankings show another banner year for the leaders of the tech revival.

Rank: 90 (Previous rank: 52)
Get quote: SINA
Employees: 1,900
Headquarters: Shanghai, China
Sector(s): Retail
Why it's hot:
Sina, the Yahoo of China, blew past 200 million registered users in 2006, thanks largely to newly added blog and video services.
Revenue 212.9 29.6 47
Earnings 39.9 14.6 94
Operating cash flow 63.1 28.9 87
Stock return (2006) 19
Headcount change (2006) 0
From the June 2007 issue
Latest Headlines for SINA
B2 100 Headquarters
B2 100 Companies 2007
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How we rank them
To find the B2 100, we screened more than 2,000 tech companies that have been publicly traded on a U.S. stock exchange for at least three years, have a market capitalization of at least $50 million, and have had positive operating cash flow over the past 12 months. Zacks Investment Research of Chicago ranked the resulting list using four financial criteria: growth in revenue, profit, and operating cash flow during the past three years, and the 12-month stock return as of Dec. 31, 2006. Cash flow growth counts for 40 percent of a company's ranking. Each of the other criteria counts for 20 percent. Additional research was provided by Factset. If you have further questions about Business 2.0's 100 Fastest growing technology companies, please e-mail talkback@business2.com.