Once you've signed up with Booklert, you can start tracking books. Any books that are in Amazon's catalogue. Your books; your competitors' books; your favourite books; the books you hate... Booklert doesn't care. It will send you the rank of whichever books you're tracking at the times you've chosen, and tell you whether each book is climbing the chart, or falling from grace.
If (how much I want to write when!) Apple starts selling ebooks, I wonder if such a tool could track iTunes (ebook)Store sales?
Track your reading and bookmark on the go. Here's how.
Well, that's why I have a Reading category in this blog.
-- via Russell Davies (not the one[s] you think)