[SINA Reports First Quarter 2010 Financial Results SINA News SHANGHAI, May 17 /PRNewswire-Asia-FirstCall/ — SINA Corporation (Nasdaq: Starting in the fourth quarter of 2009, in addition to the disclosure of GAAP results below, SINA’s historical revenues and certain non-GAAP measures (namely, gross profit, operating expenses, income from operations and advertising gross margin) have been revised to exclude results from China] [FORM 6-K SINA Corporation 37, Jin Mao Tower þ o Form 20-F o o o þ Yes 82- TABLE OF CONTENTS SINA CORPORATION Herman Yu Chief Financial Officer 6-K 1 f55899e6vk.htm FORM 6-K]