What The Heck Does Google Ad Services pagead aclk mean?

I don't really tackle to many of these really detailed technical posts for, but truth be told google ad services pagead aclk is a subject I have seen a lot of people write about. And since its an off again/on again topic I thought what they hay lets see what is sparking all this interest. Little did I know there is a lot of technical information written and it can be somewhat overwhelming to say the least.

Ok,...