Qihoo 360 told Reuters it's in very early talks with Sohu.com to buy the company's search engine, a deal estimated at $1.4 billion. The deal would help Qihoo compete with Baidu, China's No. 1 search engine. Analysys estimates China's mobile Internet market will double to about $48 billion in 2014, according to Reuters. Earlier this week, Baidu said it would acquire 91 Wireless app store from NetDragon Websoft.