2008 Oct 14, 12:50Cardboard filter that turns video monitors into an array of large color-changing boxes applied to public video billboard ads: "Pixelator turns those ugly, blinding video billboard ads into art."
art streetart cultural-disobediance subway graffiti advertising nyc diy howto 2008 Sep 22, 1:47Tottenkoph, Rev and Philosopher, "Hijacking the Outdoor Digital Billboard Network". DefCon talk presentation notes on hacking digital billboards.
hack defcon security billboard 2008 Feb 5, 2:02From BB's article: "In December, graffiti writers AUGER and REVOK modified a billboard advertising the wonderful Takashi Murakami exhibit ... Murakami himself saw online photos of the graffitied
billboard and thought it to be "so wonderful, he had to have
art graffiti cultural-disobediance murakami via:boingboing 2007 Dec 6, 5:18Billboards use hypersonic sound beams to make you hear voices in your head.
advertising humor sound spam billboards