Sale.com The name says it all. Sale.com alerts you of all sorts of sales (beauty sales of course, being the number one stunner) and gives you "Daily Coupons!" for you to save big bucks on fab finds. They also host a ton of "fan-only" giveaways where only Facebook fans can get free stuff by visiting their site like Dolce & Gabbana products and Cargo Cosmetics. They even giveaway chocolate from time to time ... yes, chocolate -- yum!
Although The Beauty Place page on Facebook didn't make it on your list, they hold contests and have giveaways all the time. For example, you can win a Pink Bio Ionic Whisper Light ProDryer Set for the best beauty tip submitted today on their facebook page. I thought you might all be interested in additional legitimate places for chances to win free (and high quality) prizes. Thanks!