Bruce Sterling:

You get this database toxicity. You go into a system like Lexis-Nexis and you put in a search word and get 60,000 hits, and you think, this is all the knowledge there is in the universe. But it’s actually 10,000 references to six different things, and the actual story is something very few people know.

There is a Google blindness. It’s a kind of common wisdom generator, but it’s not necessarily going to get you to the real story of what’s actually going on.
It’s [Google] extremely useful for novelists but somewhat dangerous if you’re pretending to be a brain surgeon.

(Reason)