http://www.dealhunting.com – This website shows the hottest deals online. They can even be emailed to you on a daily basis.
ebates – This site pays you back! Sign up now and we each get $5. So when you are interested in buying something online just login to ebates and you get a percentage back on your purchase. For example: Right now you want to buy Christmas presents. Login to ebates then click on Gap, Walmart, or Home Depot via ebates and you get 1% to 6% cash back!
To save even more, make sure you check retailmenot.com for online coupons.