Baidu (BIDU -0.91%) is still the major market-share holder of the search industry in China, and that's not going to change any time soon. But, Qihoo 360 (QIHU.DL), maker of China's most-popular Internet browser, has just entered into the search game. This has some Baidu bears saying that this is a warning sign, and Baidu share prices have come down a bit thanks to the perception of increased competition. But is there really cause for concern? In this video, Motley Fool tech analyst Andrew Tonner singles out the three most important things you need to know about Baidu to know if it is still a strong buy.