Culture jamming is the act of using existing mass media to comment on those very media themselves, using the original medium's communication method. It is based on the idea that advertising is little more than propaganda for established interests, and that there is little escape from this propaganda in industrialized nations. ...
http://en.wikipedia.org/wiki/Culture_jamming
http://www.sniggle.net/
Naomi Klein
author of No Logo
http://www.nologo.org/
Jorge Rodriguez de Gerada
Artist covered by Naomi Klein in the "Culture Jamming" chapter of No Logo
http://www.escape.com/~artjammer/
http://www.artjammer.com/index.php?option=com_content&task=view&id=32&Itemid=47
Ron English
http://www.popaganda.com/
http://www.mediathatmattersfest.org/mtm04/ - click number 16
http://www.graffiti.org/ron_english/
Barbie Liberation Organization [BLO]
http://www.sniggle.net/barbie.php
http://www.rtmark.com/legacy/blo.html
http://www.brillomag.net/No1/blo.htm
http://users.lmi.net/~eve/barbie.html
Jujitsu
http://en.wikipedia.org/wiki/Jujitsu
McDonalds in Alaska
http://sodacity.net/morsch/teaching/sp2003/artdotnet/ak_mac.html
Negativeland
http://www.negativland.com/
http://en.wikipedia.org/wiki/Negativland
http://www.boingboing.net/2005/02/28/u2_vs_negativland_ip.html
Billboard Liberation Front
http://www.billboardliberation.com/
détournement
http://www.bopsecrets.org/SI/detourn.htm
http://en.wikipedia.org/wiki/Detournement
http://library.nothingness.org/articles/SI/en/display/315
Institute for Infinitely Small Things
http://www.ikatun.com/institute/infinitelysmallthings/
http://www.ikatun.com/institute/infinitelysmallthings/corporatecommands/
David & Goliath
http://www.virtualchurch.org/david.htm
http://en.wikipedia.org/wiki/Goliath
Carly Stasko
http://www.google.com/search?q=carly%2Bstasko
Biotic Baking Brigade
http://en.wikipedia.org/wiki/Biotic_Baking_Brigade
http://bioticbakingbrigade.org