I discovered this site a couple of days ago and was blown away! You might have seen similar 'lowest unique bid wins' games as I have, but none of them compare to Knockout Bids!
It's a rather simple concept; player's join the site, and place guesses into the games. The idea is to guess the lowest number that no one else guesses. This makes it the lowest unique guess. Get that guess and you will win the prize you are playing for. It's pretty simple!
There are great prizes on offer in all of the games. At the time I joined I was playing for Playstation 3's, Cash, Amazon Kindle's, Camcorder's and more! There's a great community aspect as well that makes the game more exciting! Each player has their own username and avatar that is displayed throughout the site so you know who is winning each game, who is knocking who's guesses out of the games and what the range is that the current winning guess is in.
It does cost a small amount to play, but for what you can win it's a bargain! I signed up on a Monthly Membership that was $2.95/wk and there are others at $1.95 and $4.95/wk.
Overall great fun with great prizes! A recommendation for everyone!
Visit the site at www.playknockout.com