"Someone covered up a billboard on La Branch at Winbern with a poster featuring a picture of Jesus Christ holding a Budweiser can. The company that leases the billboard believes vandals made the poster at home and then pasted it on top of the ad that's supposed to be there."
"The Billboard Liberation Front today announced a major new advertising improvement campaign executed on behalf of clients AT&T and the National Security Agency. Focusing on billboards in the San Francisco area, this improvement action is designed to promote and celebrate the innovative collaboration of these two global communications giants." -- Billboard Liberation Front
This Braille poster in Singapore for Vaseline shows off how smooth it (Vaseline, not the poster) makes your skin. AdLand also tells the story of a similar poster that was placed behind protective glass, which means the blind couldn't "see" it.
This ad for Sky movies ("you don't like interruptions so we took out the ads") shows a world without billboards. Or go to Sao Paolo to experience the real thing.
"Columbia TriStar created this super-cool water-hologram to promote the release of The Water Horse. The hologram illusion uses a water screen created by a exact light projected on a carefully sprayed water jet to create a giant pseudo-3-D Loch Ness “Water Horse” monster in Tokyo Bay." -- Slash Film
This billboard (come to Billboardom to see the video if you are on RSS) sneezes out a spritz of water to make its point about a sneeze that can travel 12 feet and hover for 3 hours.