Wall Street Journal.Com BY DREW FITZGERALD April 24, 2012 “RenRen Could Double “. Baidu Inc.'s first-quarter earnings rose 76% as the Chinese Internet search giant's revenue continued to surge. Baidu, which generates almost all its revenue from search advertising, has posted double-digit earnings growth over the past year on soaring ad sales. What this means for RenRen ( RENN ) is a positive outlook on future growth and revenue. With earnings like these from Baidu Inc. look for Renn shares to double.