Today my Blogotition competitor Nico started a new website project:

43ads.com

No, not just another 43/web 2.0 website, but a nice advertising idea with payback guaranty if the banner is our of the game.

How does it work?
There are 43 slots where the ads are placed, the ad with the highest bis gets a central spot for a 200*200px banner. If there are more then 43 bids the one with the lowest price is removed and the advertiser gets his money back or more if the new bid is higher than the bid for place 42 (check the information at 43ads.com to learn how it works).

There was last week a website with a similar offer, with the result a Alexa rank less then 3.000 (today)