From peace and anti-war demonstrations to climate change marches and speeches by political figures, the legendary festival is well-known for its political undercurrent and activism roots.
Nominations are now open for the most influential left-wing thinker in 2010/11 - please send in yours
Tony Benn's has called for a "broad movement of active resistance to the Con-Dem government’s budget intentions". But he also needs to set out how to reduce the deficit.