The new device in the right-hand column of my template is a SafariBox -- it's like the GoogleBox, but for Safari Books Online. Disclosure: I helped design Safari and sometimes still advise the project, though rarely nowadays. I'm using the SafariBox here because I enjoy being reminded about books, and -- as with the GoogleBox -- because I enjoy making serendipitous search-driven connections.
... [Jon's Radio]
Here is another nifty tool from John Udell! It offers a different perspective than searching on the web through Google. I wonder if a9 will offer an API like google. It would allow comparison between searches inside books versus the web.