4. Sina ( SINA): Sina is benefiting from the Internet-commerce explosion in China, where it is a leading online media services provider. It gets about 70% of its revenue from advertising.

Revenue growth has averaged 19% a year over the past three years, while earnings per share grew at an average annual rate of 116% in the same period, including a 423% gain in the past 12 months.

Analysts expect revenue to grow 8.5% in 2010 to $389 million, and to rise 32% in 2011. They estimate 2010 earnings per share of $1.64, and growth of 22.5% in 2011, to $2.01 per share.

Shares have risen 12% this year, and are up 39% over the past year, versus a decline of 5.1% for its industry peers so far this year.

Sina, with a market value of $3.1 billion, has no long-term debt, and institutional investors own 93% of its shares.

Of analysts covering Sina, 20, or 80%, advocate purchasing its shares and five recommend holding them. None suggest selling the stock. A median price target of $52.35 implies 3% of upside in the next year. RBS forecasts an advance of 10% to $56.

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