The whole thing called "economy" is based upon having an idea. No one will tell. Some will copy. Some will give advices.

Nothing serious will start that openly.. I'm sorry. Years, years, years ago. A friend started an "what do you want" website. A simple posting what you want, and a possibility to get reply openly. It was dead, before he finished the project. No visitors, no "wantings", no life.. such a good and simple idea, but it doesn't give anything back and solves a problem which isn't a problem