There is a synopsis of the effect in the current (and hopelessly irregular) Google Librarian Newsletter, but I'll highlight here:
- Expanded access to millions of in-copyright books:
The agreement dramatically expands the reach of Book Search Library Partners<http://books.google.com/googlebooks/partners.html> by enabling readers across the U.S. to preview<http://books.google.com/googlebooks/agreement/#2>millions of in-copyright out-of-print books preserved in their collections. Readers will be able to search these books through Google Book Search and where previously they have only been able to view bibliographic information and a few snippets of text from the book, they will be able to view a limited preview (up to 20%) of the book to find out
if it suits their needs.
- Free online viewing of books at U.S. public and university libraries:
Through this agreement, public libraries, community colleges, and universities across the U.S. will be able to provide free full-text reading to books housed in great libraries of the world like Stanford, California, Wisconsin-Madison and Michigan. A newly-created Public Access Service license will allow full-text viewing of millions of out-of-print books to readers who visit library facilities. Public libraries will be eligible to receive one free Public Access Service license for a computer located on-site at each of their library buildings in the United States. Non-profit, higher education institutions will be eligible to receive free Public Access Service licenses for on-site computers, the exact number of which will depend on the number of students enrolled.
- Institutional subscriptions to millions of additional books:
Imagine never having to ask a patron to wait until a book is returned or arrives through interlibrary loan. Beyond the free license described above, libraries will also be able to purchase an institutional subscription to millions of books covered by the settlement agreement. Once purchased, this subscription will allow a library to offer patrons access to the incredible collections of Google's library partner when they are in the library itself as well as when they access it remotely.
- Services for People with Print Disabilities:
One of the advantages digitization presents is the opportunity to enable greater accessibility to
books. Through the agreement, the visually impaired and print disability community will be able to access millions of in-copyright books through screen enlargement, reader, and Braille display technologies.
The vast database of books that Google is digitizing is not just a resource for readers, but also a one-of-a-kind research tool. The agreement allows for the creation of two research centers that will include a copy of almost all of the books digitized by Google. These research centers will enable people to conduct research that utilizes computers to process or analyze the text of the books. Examples of the types of research they will facilitate include automatic translation, analysis of how language has evolved over time, next generation search technology, image processing research and others.