And for a bit of a non-obvious one, Seznam in the Czech Republic.

I wonder if Seznam really is more popular than Google in ČR. Do you have any data to support this? Also I wonder what the deal is with Jyxo.cz. How much behind Seznam is it nowadays? Wasn't it technically superior?

My citation for the Seznam claim is "I read it on English Wikipedia". I have no idea if it's accurate. Sorry.