Yahoo! profit soars

Marissa Mayer's quest to revive Yahoo! stumbled on Tuesday with word that revenue from display ads at the heart of its business shrank in the first three months of this year.
Yahoo! profit soared to $390.9 millionm, a 36 percent rise from the same period last year on the back of returns from stakes in Chinese Internet giant Alibaba and Yahoo! Japan. But money from its own online ads sagged.