I suppose we've all done it, looked up something online and then had days or weeks of ads for that thing showing up everywhere. I already bought the car, the boots, the shirt! But the ads keep coming along.
Today, though, I got an ad that frankly shocked me. It's for something I didn't know exists (if it does, that is; but if you think I was clicking on it, you're insane), and I cannot in my wildest imaginings figure out how it showed up on a Washington Post article I was reading.