PriceGrabber - Get the lowest prices on computers, electronics, furniture, cameras, clothes and more.
Shopping.com - Shopping.com is a leading price comparison site that allows you shop online for the best deals and lowest prices. You can read unbiased product reviews and compare prices online. Online shopping has never been as easy!
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
PepperGoods.com - PepperGoods aggregates wholesale websites to provide you with best products choosen from millions.
Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
Shoptimate - Use the Shoptimate extensions to compare the price without any click. When you browse an item on a online store, a bar shows up at the top to tell you if the exact same item can be found cheaper elsewhere. Including shipping costs