May 16 (Reuters) - China's Baidu ( BIDU ) beat

analysts' estimates for first-quarter revenue on Thursday,

driven by a recovery in advertising sales and higher demand for

its cloud products.

The company reported revenue of 31.51 billion yuan ($4.37

billion) for the first three months of the year, compared with

analysts' average estimate of 31.21 billion yuan, according to

LSEG data.

($1 = 7.22 Chinese yuan renminbi)