So, if someone can find the info they need in the 20% of the book that Google Book Search allows to be seen, then they can use that information for free. But, if they don't find exactly what they need but think they might find it in that particular book, more people are apt to go out and pay money for a copy of the book because more people now know of its availability? Due to Google Book Search!
How much does GBS get?
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