List of all Google Services

Google Bookmarks
Google bookmark is not "social" bookmarking, like del.icio.us, because bookmarks are not public and cannot be shared among users. The product also requires way too many steps to create a bookmark.

To bookmark a site, make sure your google search history is turned on. Click "search history" on the top right of the results page. Bookmark a site by clicking on the star next to a result, and fill out the metadata.

Bookmarks are not public yet. If/once they are, this may be the first serious competition to del.icio.us.
http://www.google.com/bookmarks/

Google Book Search
Google Book Search enables users to search the full text of books to find titles that interest them and directs them to online bookstores where users may buy the books. Formerly it was known as Google Print.

Google scans and indexes the full text of the titles so that when Google users enter search terms that match content within a book, the user will be able to view a small portion of the book that matches the search terms.

When users click on a book search result, they access a Google-hosted Web page displaying a scanned image of the relevant page from the book. Each page also contains multiple "Buy the Book" links, directing users to purchase the book from online retailers.
Overall it is an excellent service of Google.
http://books.google.com/

Google Business Solution
http://www.google.com/services/index.html