The only people you should worry about, getting your idea, are the ones you’re trying to sell it to.

True, long term interest in a subject, is the best form of market research.

There’s no better way to debug a web application, than to use it regularly yourself.

You say: "I'm a blue sky thinker." Investor thinks: "You have no business model, and you don't know how to ship."

You say: "The last time I contacted you, I..." Investor thinks: "I'm going to fire my secretary for putting this clown on my calendar again."

Here's what you should say [to investor]: "This is what my company does..." It's that simple. What you're trying to do is get potential investors to fantasize about how your product or service will make a boatload of money. They can't fantasize if they don't know what you do.