Boards
The Guardian have a piece on Riot grrrl 20 years on.
http://www.guardian.co.uk/music/2013/mar/18/riot-grrrl-music-female-rebels
I'm a 36 year old man and really just enjoyed the music. Those bands back then sounded far more brash and raw than the stuff at the moment.
Who would be considered vaguely riot grrrl nowadays? Savages perhaps?
Do minor music movements ever change anything long term anyway? Just enjoy the music.