Yikes. This morning I tried to find info about your eBook formats and when I received a 404 not found error I tried to find your Contact Us page and got another 404 not found. I suggest that you give a set of your books to whomever is responsible for programming your own web site.
- clicked on Help and searched for ebook
http://www.sitepoint.com/search/search.php?ps=10&q=ebook&x=12&y=19
- clicked on Contact: Customer Support
http://www.sitepoint.com/wpcf7_contact_form/contact-us/?source=homepage