I still give the Economist huge credit for releasing this cover image in 2005: http://www.tradersnarrative.com/wp-content/uploads/2008/03/a...
That was arguably the most unambiguous and accurate prediction on the cover of a magazine, ever.
I remember the lady next to me on an airplane telling me she was just getting heavily into a house flipping business. I happened to have that issue of the Economist with me to read on the plane. I showed her the cover and said "But what about this?"
(I wonder what happened to her business...)