By Alexei Oreskovic. SAN FRANCISCO | Tue May 21, 2013 12:19am EDT. SAN FRANCISCO (Reuters) - Yahoo Inc Chief Executive Marissa Mayer's $1.1 billion acquisition of blogging service Tumblr will be a test of her ability to revive the aging Web portal.

Apple Inc. (AAPL) Chief Executive Officer Tim Cook is going somewhere his predecessor never ventured: the witness table at a congressional hearing on Capitol Hill.

The Indian chief executive of outsourcing firm iGATE, Phaneesh Murthy, has been sacked "for not disclosing a relationship with a subordinate".

As 787 Dreamliner commercial flights resume after a lengthy grounding for battery problems, Boeing Co. and its customers are refocusing on fixing the host of other technical and mechanical issues that affect the reliability of the cutting-edge aircraft.

Fannie Mae and Freddie Mac (FMCC) are exempt from Michigan's state and local real estate transfer taxes, a U.S. appeals court ruled, overturning a lower-court decision.

Grammy winner Mary J. Blige is being chased for taxes again. Like mixing plaids and stripes, celebrities and taxes often seem to be in discord.

GrubHub Inc. and Seamless North America LLC, two of the top food-delivery websites in the U.S., have agreed to combine their companies to take on rivals in the growing market for online meal orders.

Mon May 20, 2013 2:59pm EDT. * Japan minister suggests yen has weakened enough. * BOJ meeting, Bernanke's congressional testimony in focus.

SoftBank Corp. (9984), the Japanese carrier bidding to take over Sprint Nextel Corp. (S) in a $20.1 billion deal, plans to sell 400 billion yen ($3.9 billion) of bonds targeting individual investors to fund the purchase.

Employers are increasingly recognizing they may be able to avoid certain penalties under the federal health law by offering very limited plans that can lack key benefits such as hospital coverage.