Google automatically spiders websites on a regular basis, often if it determines that a particular website is popular and is updated often, as peakoil.com is.
So your post was spidered and cached by Google. It happens. I've seen a post or two of my own that way.
The problem is, of course, that not only is economics bankrupt, but it has always been nothing more than politics in disguise... economics is a form of brain damage.
$this->bbcode_second_pass_quote('madison', 'W')hile doing internet research tonight, I typed in my subject in the Google search engine and one of my own posts HERE came in at #3! Really freaky.
I wonder where we are all leaving information leading to Peak Oil at all over the internet???