Initially a vital component of experimental black film culture, the Black Audio Film Collective quickly arrived at retrospective respectability. Josephine Berry Slater enters the memory space of their recent show at FACT and retrieves the radical yet 'still born' possibilities from its multi-media memorial

Let them bear witness to the process by which the living transform the dead into partners in struggle, Handsworth Songs, BAFC

Forming part of a recent media studies tendency to analyse the impact media have in representing, and therefore also producing, the same histories they exist within as 'denizens', Lisa Gitelman's Always Already New: Media, History, and the Data of Culture presents some media historical 'remediations' of its own. Reviewed by Jussi Parikka

No other group has had such a catalysing influence on the new political forms and tactics espoused by the anti-globalisation movement, yet there has been too little critical analysis of the Zapatistas' politics and the relationship of western activists to their guerilla icons. Melancholic Troglodytes review Mihalis Mentinis' book Zapatistas: The Chiapas Revolt and What It Means for Radical Politics and discovers some ugly nationalist features behind the mask

At industry pop’s polar opposite, improvisers are involved in a musical praxis which resists formulated goals, ready-made forms and final outcomes. Here, Mattin extrapolates the politics from the tactics of improvisation