Can Qihoo 360 Technology (QIHU) unseat the king? All eyes will turn to Qihoo's third-quarter report, due Monday, for clues to its success in snatching search-engine market share from Baidu (BIDU). Qihoo, which went public in March 2011, made its bones as a Web-based hub that distributes mostly security-related software. Qihoo offers a separate line of security software for the mobile devices market. And it runs e-commerce sites that distribute