you have 50 ad spots, at $2.50 a time that is not a great deal of money considering it is a lll.com you are using (sorry only noticed the menu at top)
so you will be selling the name at some point so people will lose their link, imagine people having used your idea (which i think is flawed but we will go with it anyways) and are telling people im number 19 on idy.com and then one day they just arent there, imagine if people had used it in marketing material
anyways its just a glorifed link dump that you are trying to brand as a bookmark site
why not try developing something more like a social bookmarking site like at deli.cio.us (i dont know where the .'s are supposed to go so prob got it wrong)
anywyas best of luck with the site, im sure you will make a killing selling the domain at some point in the future
ps why have the top spot taken by the very site people are at?