Can you recommend a website for ebook price tracking?

Can you recommend a website for ebook price tracking?

Petite Valentine Petite Valentine
I rely heavily on Camelcamelcamel.com, however the site doesn't offer ebook tracking. Ebook items appear "out of stock" in the system which means the tracker won't generate notices / tweets / emails / etc. on a price change.

Anyone know of a website that will allow a user to track the price of ebooks? Preferably one that doesn't require a social media login...
05/08/2012
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