Two of the biggest publishing houses in the English language have put their books online. HarperCollins and Random House now enable book lovers to browse trough books via their websites. (Just click on the name of the publishers to get to the appropriate webpage.) Sometimes you can see new books before they get published!
They also made a sort of widget that makes it possible to post a book on your website. Sadly, it is not possible to do this on WordPress, because the script is in Java. If you found a way to put a novel on your blog, let me know!