"How to make something people want?"
callmeed: Doesn't halfbakery.com do something along these lines?The main problem I see with your idea is that consumers/users have no benefit or incentive to continually use your site.They are providing their time and input on something that doesn't exist. People take time to provide input at Yelp because, in return, they can find a good restaurant. People vot on Digg because, in return, they find funny/interesting stories or videos.You want lay-people to provide you with input but you're giving them nothing in return ... except the possibility that a business they would use could exist in the future.