Another killer feature of the sphinx documentation is that Disqus has now been integrated into the HTML rendering of the pages. You can comment on each of the pages directly. Very cool. You can also see the magic which enables Disqus/Sphinx integration on github. http://github.com/cguardia/ZODB-Documentation/blob/master/book/_templates/page.html I have not seen Disqus being used with sphinx. But I hope it catches on.
Thanks to Carlos and Jens for making the ZODB book building daily on zodb.org and enabling disqus on the pages. The bar for participating is very low -- please participate. Add a comment. Even if you like it. We need to hear more peoples thoughts.