WishSimply - Wishsimply is a easy-to-use online and mobile service to manage and share your wish lists.
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
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
Camelcamelcamel - Easily monitor Amazon product prices and get alerts when they drop.
WishMindr - WishMindr is a free online service that allows users to create gift wishlists for birthdays...
PepperGoods.com - PepperGoods aggregates wholesale websites to provide you with best products choosen from millions.