If I understand correctly from the article their current use is not resulting in financial gain. >> Unlike other forms of Google search, Google does not displa

If I understand correctly from the article their current use is not resulting in financial gain. >> Unlike other forms of Google search, Google does not display advertising to book searchers, nor does it receive payment if a searcher uses Google's link to buy a copy. Google's book scanning project started in 2004. If that changes later on that may be cause enough to for them to be challenged on fair-use again.