A while ago Yahoo did some stupid ad campaign that juxtaposed two different locales in supposedly surprising and humorous ways. One of their marketing managers described it thusly:

"We use the billboards to show a map of the area with locations of two kinds of services, but with a Yahoo! twist... One shows the locations of the nearest modeling agencies...and diet centers. Others show yoga centers and chiropractors, or romantic restaurants and motels."

Um, yeah. Anyway, I saw this doctored ad on Mission Street and thought it was pretty well done.