Qihoo 360 Counters Baidu Mobile-App Deal With Sohu Search Talks

Qihoo 360 Counters Baidu Mobile-App Deal With Sohu Search Talks

Nelson Ching/Bloomberg

Baidu Inc. strengthened its dominance last week with a $1.9 billion deal to buy app store 91 Wireless, the most expensive acquisition announced by a China-based technology company, according to data compiled by Bloomberg.