A leading US academic has defended Google's controversial plan to digitise the contents of major libraries.
Google's co-founder Larry Page was a Michigan graduate
Speaking to the Association of American Publishers, which is suing Google, Mary Sue Coleman called Google Book Search "legal, ethical and noble".
It would preserve books from decay but would not infringe copyright, she said.
Ms Coleman heads the University of Michigan, which is participating in the project and numbers Google founder Larry Page among its graduates.
The AAP, which includes major publishers such as Penguin, filed a lawsuit against Google in New York in October 2005 claiming that Google will infringe their copyrights.
In a mission statement posted on its website, Google likened its Book Search project to US President John F Kennedy's drive to put a man on the moon, an "unthinkable" idea realised within a decade.
The company insists it will not allow copyright infringement, describing Google Book Search as a "book-finding tool, not a book-reading-tool".
Material from Michigan, Stanford, Harvard, Oxford and the New York Public Library is being digitised.
Addressing an audience of scholars and professional publishers, Ms Coleman described her university's partnership with Google in terms of a "mission".
The university and the internet giant shared a belief in core values, she said: "The preservation of books; worldwide access to information; and, most importantly, the public good of the diffusion of knowledge."
The University of Michigan had already begun digitising many of the works in its collections before the suggestion four years ago by Larry Page that Google take over and speed up the process, Ms Coleman said.
Many books stored in traditional libraries are under threat of decay
"We were digitising books long before Google knocked on our door, and we will continue our preservation efforts long after our contract with Google ends," she added.
"As one of our librarians says: 'We believed in this forever.' Google Book Search complements our work. It amplifies our efforts, and reduces our costs.
"It does not replace books, but instead expands their presence in the marketplace."
The AAP launched a lawsuit against Google when discussions over the company's project broke down in October.
Five major publishers companies backed the claim: McGraw-Hill, Pearson Education, the Penguin Group (USA), Simon & Schuster and John Wiley & Sons.
Google hopes its plans will boost book sales
The action, filed in New York, aims to secure a legal declaration that Google infringes copyright when it scans entire copyrighted books.
It also seeks a court order preventing Google from digitising copyrighted books without permission of the copyright owner.
There also remain fears that Google intends to place adverts on search result pages, in effect generating lucrative revenue even as it "infringes" copyright.
"The bottom line is that under its current plan Google is seeking to make millions of dollars by freeloading on the talent and property of authors and publishers," said AAP President Patricia Schroeder.