Found this video pretty informative, so thought I would share it with you all. The chief economist from Google discusses Quality Score! If you can get a great quality score in your PPC campaigns then you will drive you cost per click down, and this can turn into huge savings. For example if you are paying 40cents a click and can get it down to 35cents, you have saved 12.5%, imagine if you are spending $500 a week, that is about $60 saved!!