Via the very observant Philobiblos blog we learned of another, The Literary Detective. Good job of spotlighting some suspicious activity in the bookselling realm. I was also drawn to "What were they reading on the Titanic?" but couldn't pull up a copy of the item. I'll go back for another look, care to join me?
(The real mystery is why some of these links don't show up. If the Philobiblos link isn't active you can find it here: http://philobiblos.blogspot.com/2010/05/links-reviews.html)