From Google Blogoscoped:
The full PDF of my book, 55 Ways to Have Fun With Google, is now available on 55fun.com. As the book is Creative Commons licensed, you are encouraged to copy, read, share, remix, convert, quote, browse, and print the PDF to your liking. If you do create conversions, e.g. an HTML version, please send me the URL so I can link to it from 55fun.com.
Visit Google Blogoscoped to follow the links to the free PDF.