Search Engines in Layman’s terms. Why they are so important in this day and age.
Make no underestimation on this – this is an ABSOLUTELY HUGE subject and one that changes very frequently indeed. This is not a de-facto guide by any means, and elements of this article could be out of date even a week from the publishing of this post. It is a subject that in all honesty is best left to professionals who stay at the top of the game, constantly review the goalposts and rules defined – and have a deep seated understanding of the mechanics at play in this fascinating subject!