If you are looking for some great websites to help you save money while shopping online, MSN's Money Central has an article with 8 top sites for online shopping that can be very helpful.
I like to combine orders with Amazon and get free shipping on orders of $25 or more. If you use Coinstar and convert $40 worth of change into an Amazon gift card, you can get an extra $10 gift card for free! Offer is good now until December 7th. Details can be found here.
Also, Restaurant.com has great discounts on gift certificates for various restaurants, and if you order through uPromise, you will get an added percentage towards college savings. Use promotional code THANKS to get 70% off. Offer is good until tomorrow.