I am trying to install a Google Books Preview button on a WordPress blog I help manage: http://www.alicepung.com/blog
I take the code generated from this Preview Wizard: http://code.google.com/apis/books/docs/preview-wizard.html
I wrote to WordPress support to see if Google Books would/could be added to the trusted partner list. The response I received was helpful:
However, I have tried posting the Google Preview code into the 'Page Content' field of any given page, saved the page, the code is not disrupted, but the Google Preview button does not display. I have tested this on a standard HTML site, and the button works fine.
Thanks for your time!