This image might need updated in the years to come, but it does a great job laying out how Google works when you type a query into their search engine. Search is so easy to do that it is hard to appreciate how complex it is unless you take a look under the hood. Which is exactly what this graphic does :D Click the image to get the full sized beefy image :D A side benefit of this graphic is that it should help prospective clients realize how complex SEO & PPC campaigns can be.