I know that Baidu rules in China and Yandex in Russia, but what about these other countries? Any ideas?
The only market shares I have are China (Baidu 60% and Google China 10%), Japan (Google Japan and Yahoo Japan) and Google Germany has the most market share in Germany. If I had to guess I would say they have one search engine that has the highest share with Google and Yahoo country specific engines in the top 3.
Hope that helps,