Google Print has become Google Book Search with a new URL at http://books.google.com/.
Google say that “This change reflects the ongoing growth of the product and our continuing effort to make the search service more user-friendly… Additionally, users and publishers told us the name Print was confusing: some thought the product existed to help them print web pages.”
As well as a name change, there are additions to the Advanced Search screen including options for searching by title, author, publisher, year or years of publication, and ISBN.