Does anyone know where these analysts get their increase/decrease stats on Qihoo and Baidu? I ask because I monitor using Alexa and have noticed Qihoo losing ground over the last 30-60 days. So how can there be contradicting stats? Fleet? Sword? Newbe? your opinion is valued. Thanks
There are third party companies tracking traffics. But analysts also employ their own sleuthing tools to get an edge.
Since Bidu operates exclusively in China at this point, you may be interested in a couple of Chinese firms that do these things: iRESEARCH, and China Internet Watch( subscription).
Is Alexa active in China too?