The ads are really just placeholders, and it asks Google for an ad on each page load. I don't have a way of saving them or even knowing what ads displayed. It would be nice to have a list of "most popular" ads that I can pick from to display specifically, but their system doesn't provide for that. If it did, I could bypass Google as the middleman and go directly to the company whose ad it is to get a better deal.
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"I conceive that the great part of the miseries of mankind are brought upon them by false estimates they have made of the value of things." - Benjamin Franklin