How to keep track of product's rank on 'Top Seller' List?

[Xenon14]

I'm specifically referring to Amazon's top seller ranking system. They post the rankings of the best sellers for that hour. However, I want to get a good idea of how well a product is selling over the course of a day, week, month.. etc and would like to plot the history of that product's seller rank every hour without having to visit the site myself to check. Any ideas?? Thanks!

 

[txrandom]

Are you opening your own store or are you trying to get Amazon's top seller data?

 

[Argo]

Try http://www.amazon.com/E-Commer...5361&me=A36L942TSJ2AJA