Dharmesh Shah made mention about talking people to people who are interested in your domain about your product before releasing your idea. he talks about it in this video over at mixergy. Excellent video btw, located here.
I have an idea, there's some really big players in the industry right now but as i use their services i hate it. i feel as though i need these services but i can not stand the way they are currently done. i know how to improve these services and my idea does things completely differently.
So my question is how much information should i reveal to people and get feedback without someone stealing my idea or even the big players implementing it before i can get into the field.