Scan Websites For Price Match Guarantee

For websites of online retailers with price match guarantees, allow user to enter:

• product (TV model, flights) and price
• how long to compare for cheaper

 Search online for the same product at a cheaper price.  Email user if cheaper price is found.

This is not just a PriceGrabber site.

Revenue potential is minimal.  Display some ads.  Possibly set up a yearly subscription with frequent fliers.