Craig Baldwin creates "collage essay" films, redeeming or taking revenge on the trash(ed) videos of the past, and making movies on the cheap (YT interview). The work of this culture jammer, media appropriator, director and documentarian (Sonic Outlaws, Archive.org) stretches back to his short student films in the 1970s, and often includes political commentary, usually concerning the exploitation of countries and people under imperialism, capitalist or otherwise. But you might have to look beyond the chaos on the surface, as found in the ultimate conspiracy theory film, Tribulation 99: Alien Anomalies Under America (1991 - 48 minutes, Vimeo). [more inside]
The Situationist App. For the revolution of everyday life, or not?
Culture Jam: Hijacking Corporate Culture [39m CBC Short Cuts version on Google Video] is an overview of "culture jamming". [more inside]
20th Century Avant-Garde is a great resource guide to experimental art from 1900 onwards. Special sections for dada, the situationists and fluxus. You can also browse by categories such as artists, film and video art, movements in art, publishers and many more. If you're interested in experimental art of the 20th Century you can get lost in this site for hours.