This was one of the earliest things I was taught about entrepreneurship, and it's been beat into my head over time: share your bloody idea. With damn near everyone who'll listen. Your idea is worthless; it's the execution that matters (we already know that here, of course). However, there are two reasons the idea is worthless. We're all used to the "if you aren't executing you have nothing with which to make money" reason, but the other reason is that somebody else already has your idea, almost certainly. The less earth-shattering it is, the more likely somebody else has the same idea, of course, but even some of the earth shattering ideas are floating around other peoples' heads. Thus, the goal isn't to keep a secret, but rather to get the information out to whoever can help you with the resources you need to ship, whether it's connecting you with developers, designers, investors, whatever, or simply providing you with essential feedback.<p>I'd be willing to wager that more projects have been killed from this sort of paranoia-fueled secret keeping than by people stealing ideas.