…offering up to 500,000 items for digitization. From the Cornell library site:

Cornell is the 27th institution to join the Google Book Search Library Project, which digitizes books from major libraries and makes it possible for Internet users to search their collections online. Over the next six years, Cornell will provide Google with public domain and copyrighted holdings from its collections. If a work has no copyright restrictions, the full text will be available for online viewing. For books protected by copyright, users will just get the basic background (such as the book’s title and the author’s name), at most a few lines of text related to their search and information about where they can buy or borrow a book. Cornell University Library will work with Google to choose materials that complement the contributions of the project’s other partners. In addition to making the materials available through its online search service, Google will also provide Cornell with a digital copy of all the materials scanned, which will eventually be incorporated into the university’s own digital library.