Context sensitive ads?

I just noticed that the GoogleAd atop my page asked "Want to live in Ecuador?"

Huh?

Whereinnahell did that come from?

I'm honor-bound not to read it to find out, but I haven't been this puzzled since the "Maternity Swimwear" ad. You could write everything there is to know about my maternal instincts on the back of a postage stamp and still have room for the Magna Carta. In Sharpie.