Google, Baidu and Search Engine Optimization in China

Search engine marketing is the main engine behind Google’s rise as a major online media player, and the product it is offered in is Google Adwords, which allows advertisers to directly target their online ads by selecting keywords, and then targeting them to relevant search results pages and to published pages (using Google’s publisher’s network, Adsense).

In China, the leading search engine company is Baidu, which started in the US, but came to China, and is now the most popular search engine among Chinese Internet users. It has been financially successful, and is listed on the US’s Nasdaq under the symbol BIDU

There are several reasons for Google Adword’s success, and the most important are two: PageRank, which measures the popularity of a web page by measuring inbound links which for the most part, are selected by humans and not computer algorithms, and introducing relevance into the keywords auction model. Under the Google model, paying the highest price for a keyword is not enough to insure clickthrus (for the most part, Google charges advertisers per click, or pay-per-click PPC), but it must be relevant. The more relevant it is, the more clickthrus it will get, and the less an advertiser will have to pay for a higher ranking.

As this excellent article makes clear, Google did not invent the keyword auction model, but it did perfect it. By perfecting the Google Adwords model, Google has become the hugely profitable online media machine it is.

As China becomes more important as a market, more advertisers are looking to sell directly into the Chinese market using Google and Baidu, the two leading search engine firms in the Chinese market. Baidu operates under a very different business model from Google, one which it has adapted to suit the Chinese market.

My understanding is that Baidu does not figure relevancy into its advertising fee structure, Chinese advertisers only pay for higher ranking. As far as I know, Baidu does not have anything like PageRank inbound linking algorithm to count inbound links either. Without these two elements, Baidu’s ad search looks a lot like the GoTo.com ad model. This makes it fundamentally different from the Google Adwords model.

I’m digging deeper into the search engine marketing business in China, and want to hear what you would like to know about. If you have questions, please post them in English or Chinese in the comments below.


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