I have made this case before, but I will make it again. The Internet is the largest information system in the world, and Google is the primary portal into that information system. Google's "organic" results are accompanied by AdWords results, which are based on a mixture of bid price and relevance. These ads are marked with a small "Ad" label that many people miss, and even those who know they're ads can't really "un…
But it is biased! The card catalog might be an unbiased representation of what the library has- but have you considered that what the library has is biased by monetary influence? What the book costs. Whether the book is demanded (advertising). Jacket design (you grab the most interesting-looking book).
The flaw to libraries is their naturally limited capacity.