If you don’t understand, here is the down and dirty: Number 3 is paid listings. These are Googles’ bread and butter. Number 2 is the organic or “natural” listings. These are the tougher to get listings and the ones that mean the most if….you’re not trying to sell something. If you are trying to sell a product, then you need to be out there and in the top results of the terms that apply to the product you are trying to sell. If you can’t afford to be in the top 3 results for a paid term, then you need an SEO expert to get you in the top 3 natural listinigs. Number 1 are Google based local results. These are geo-based results and is the way that search is going, if it isn’t there already.