Forget waiting until the night before and sifting through advertisements to find the best Black Friday deals. There are a couple of Web sites that will do the work for you with just a click of the mouse.

On Nov. 11, DealNews.com will officially post all the major retailers' Black Friday ads, including Best Buy, Kohl's and Target.

Another site to check out is PriceGrabber.com. Not only will it post the big savings, but it will let you select which must-have gifts you want to buy this year. It will also tell you where you can find the cheapest deal and will alert you when another store is offering that product at a better price.