@ Squeaky – In the thousand or so words in my article and response, I managed to miss one critical point.

A company can have dominance in the market because there is an uneven playing field, or they may have dominance because customers prefer their product or service.

I think many of the competitors to Google search have fairly strong name recognition. Microsoft had a pretty big media campaign for Bing, and they certainly have the money to make it a fair fight. For whatever reason, people strongly prefer to use Google search. Whether the superiority is real or perceived is irrelevant (that’s why companies have marketing departments) – you can’t (easily) legislate that a consumer make a different decision.