Are you looking to join in on the Facebook Application market..? Do you want to sell a Facebook application you created..? Then you might want to check out the website know as Appmrkt.com. It gives you the ability to Buy Facebook Apps that people have created. The site also allows you to sell your Facebook Apps if you have any to sell.

I found it by researching Facebook API’s and Facebook Marketing resources. The site is claiming to have “evolved to BETA Status” so it might be something worth looking into if you are looking to get a piece of the Facebook money making pie.