What are the best ways to think of ideas for a startup?

START. Test your idea if you right now on ebay, contact a mentor on Free Small Business Advice or a VC like AngelList, on Craiglist, write an amazon ebook, post a video on kickstarter.com and youtube. Just don't give out the uniqueness of our business. You only have a business if someone is willing to buy. If you are hiding you are only hiding from yourself. I have examples at Page on Yoube and http://www.IHackReality.blogspot.com http://www.youtube.com/user/b29349