Fetchee - Fetchee is a free price tracking wish list app that works with all online stores worldwide.
Lootr.com - Lootr - Your favorite amazon price tracker. Saving you from paying full price.
6paq - We track prices on Amazon, but we don't just track any product.
LoveSales - Find and save products you love, get alerted when they go on sale.
TrackIf - Alerts you if the price of your favorite products drop
Wishlist Manager - Wishlist Manager is a wishlist price tracker for amazon products