I need to track stores prices of items, for example of amazon for this book:
http://www.amazon.com/gp/product/074...pf_rd_i=283155
It is 13.99 but say it drops to 7.99 tomorrow.
So my website would display
01/29/2010 - 13.99
*price change* - 03/03/2010 - 7.99
If there is a change of price and I want to display that on my website automatically, what is the best way of doing it?
1)Through the source code and scanning that every day?
2)Through a product database the shop may have that I can pull more easily?
3)Any other way?
I would like to hear your ideas.