Sina Corp., one of China's top Internet portals, and Google Inc. said on Monday they would cooperate on news, advertising and search services in China, the world's second-largest online community.

The partnership would initially allow Google users easier access to Sina's news content, the two companies said. They did not reveal any financial details of the agreement.

"In the future, we can explore cooperation in advertising and search, and other areas," Lee Kai-Fu, the president of Google in Greater China, told reporters.

The two said details about how the cooperation would proceed were still being worked out.

Although Google and Yahoo have been making inroads into China, analysts have said that domestic operators such as Sohu.com, Baidu and Alibaba held an obvious cultural and first-mover edge.