How much for that click in the window?

Tim Bray chimes in on the future of the search market. Noting that the major search engines today are “offering approximately equal levels of service,” he says that “when you have a small number of competitors providing a commodity product to millions of customers, and the product is, per-unit, ultra-lightweight, economic theory as I understand it would call for some sort of a radically-open market. It’s just a matter of working out the details.”