Yahoo Inc struck a deal with Firefox maker Mozilla Corp to replace Google Inc as the default search engine on the Firefox Web browser in the United States, a move that Yahoo Chief Executive Marissa Mayer said will help boost its flagging search market share.
Activist investor Starboard Value LP disclosed stakes in Yahoo Inc and AOL Inc on Friday, nearly two months after it urged the two companies to merge.
At least two top-10 Yahoo Inc (YHOO.O) shareholders are so unhappy with Chief Executive Marissa Mayer's turnaround efforts that they are making a direct plea to AOL Inc (AOL.N) CEO Tim Armstrong to explore a merger and run the combined company.
Yahoo Inc (YHOO.O) will pay about $640 million for automated advertising service BrightRoll, beefing up its ability to sell video ads in real-time to marketers.
Yahoo Inc reported a modest increase in revenue during the third quarter, exceeding lackluster Wall Street targets, as the Internet company's online display advertising business continued to struggle.
High salaries and free food aren't enough any more in Silicon Valley, where maturing companies are competing for talent with creative health care and "wellness" programs that use gadgets to promote good behavior.
Yahoo Inc plans to invest a part of the proceeds from the Alibaba Group Holding Ltd stake sale in mobile app Snapchat, which lets users send messages that disappear after a few seconds, the Wall Street Journal said.
A proposed merger of Internet pioneers AOL Inc and Yahoo Inc could create a nimbler player in Web video, but strong growth, the measure of success in Silicon Valley, would remain elusive.
Alibaba Group Holding Ltd's record public offering of shares on Friday further spurred already elevated activity in Yahoo Inc's options, pushing volume on the U.S. Internet company to a one-day record high.
U.S. stocks closed little changed on Friday after Alibaba's strong debut was offset by falling technology shares as Oracle and Yahoo stumbled, but the Dow managed to edge higher to set a record for a second straight session.
The U.S. government in 2008 threatened to fine Yahoo Inc $250,000 a day if it failed to turn over customer data to intelligence agencies, according to documents unsealed on Thursday.
Yahoo Inc (YHOO.O) will buy mobile analytics startup Flurry to beef up a fast-growing mobile advertisingbusiness that still lags Google Inc's (GOOG.O) and FacebookInc's (FB.O) in scale.
The billionaire founder of web portal operator Naver Corp beat back Google Inc to leave South Korea one of few countries where the U.S. search engine does not dominate.
Fidelity Investments Contrafund, the largest mutual fund investor in Yahoo Inc, cut its stake in the Internet media company by 41 percent during the first four months of 2014, according to the fund's latest disclosure.
Yahoo Inc has bought Blink, a mobile messaging startup whose app lets users send messages that will self-destruct at a time set by the sender.