WishSimply - Wishsimply is a easy-to-use online and mobile service to manage and share your wish lists.
LoveSales - Find and save products you love, get alerted when they go on sale.
WishMindr - WishMindr is a free online service that allows users to create gift wishlists for birthdays...
TrackIf - Alerts you if the price of your favorite products 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
Giftwhale - Giftwhale allows you to create personalised wish lists online.