I have a landing page with different products that I compare. There are several different affiliate programs that sell the same product for different prices. How can I automatically keep the prices of my products updated and accurate? I noticed that CNET.com, a big time review site does this very well. Here is a link. Apple MacBook (Core 2 Duo 2.4GHz, NVIDIA GeForce 9400M) Laptop prices and reviews - CNET Reviews You see towards the bottom they have all of the prices from different stores and its all 100% accurate, but these stores must update their prices, how does CNET update the prices on their page?
