Chinese online and mobile media company Sina Corporation announced its unaudited financial results for the fourth quarter and fiscal year ended December 31, 2009.Net revenues decreased 3% year-over-year and increased 2% quarter-over-quarter to USD98.2 million for the last quarter of 2009. Advertising revenues decreased 9% year-over-year and 1% quarter-over-quarter to USD63.2 million. Non-advertising revenues [...]