Firstly the amazing Riot Grrrl compilations put together by Riot Grrrl Berlin- there's two so far, with plans to make one every two months- you can download both for free here
there's tracks from the likes of Pussy Riot, Femmepop, Driver, Ten Tigers, Hooker and much much more!
and speaking of Ten Tigers, they have a new song which is available for free- an anthem to Jenson Button! Here's the link to download it for free- Free!
singer M also made a cute little video to go with it-here