It will pop up relevant questions on what you were trying to deiced on. One example is what type of computer should I buy, it will ask you questions like how big, brand, price, ext. After about 10 questions it shows three results. Most questions are user generated, however it seemed to be pretty good  at coming with up with good results Hunch.com offers questions on about anything, the interface is simple and easy. I just hope they are creating a mobile version, that could be useful.