Inside Google Book Search, in a posting by Google Books Product Manager Brandon Badger, debuts a set of new features in Google Book Search. My favorite, the ability to embed a preview of a book or a link, such you see above or as the link following for Page 28 of A Catalogue of Books Printed in the Fifteenth Century Now in the Bodleian Library .
The linking code has been on the site for a while, though I believe it only pointed to a book, not a location in the book. Google has published a developers API for supporting embedded book previews.
Improved search and presentation features, such as drop-down menu for navigating to chapters within a book and a plain-text view, are also new. The online view of a book also now supports turning pages within the book rather than just scrolling down (your option, which is what I was saying the best approach is earlier today).