[prestia]

I think it helps to have a core group of people with whom you can freely discuss new ideas. Open discussion often helps highlight any inherent flaws with your plan or potential difficulties you may encounter in execution.

It probably doesn't make sense to share an easily-executed idea with an untrustworthy individual who has sufficient resources, but that's common sense. More often than not, discussion will only help improve your idea. Start with your core group and branch out from there.

Social networking existed before Facebook, group buying before Groupon, and gaming before Zynga, but proper execution allowed these companies succeed.