I got another update on the Google Auto Link program. I don't really see much wrong about how they're doing things now... but what could happen in the future. Take a moment to check out the following article -

http://www.clickz.com/experts/search/opt/article.php/3490576

Pay particle attention to code you can add to your site to kill the auto link.

http://www.threadwatch.org/node/1562

Even if you don't have links to books - I think this move by Google definitely bears watching.