It's a terrible idea to vest this much power with one company, even one as fun, user-centered and technologically excellent as Google. It's too much power for a handful of companies to wield.Search is too important to leave to one company - even Google
The question of what we can and can't see when we go hunting for answers demands a transparent, participatory solution. There's no dictator benevolent enough to entrust with the power to determine our political, commercial, social and ideological agenda. This is one for The People.
Put that way, it's obvious: if search engines set the public agenda, they should be public. What's not obvious is how to make such a thing.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.