A host of new features has been added to Google Books which can give you more ways to browse and share the content from the Google Books collection. For example, a feature that allows you to embed previews of books in your blog or website, so you can share pages of your favorite books as easily as you would a YouTube video. Also, a thumbnail view of full book and magazine pages and an improved way to search within books.
Embeds and links
Better search within each book
Find more details at Official Google Blog: