Another recent woman who rocks is Karen O of the Yeah Yeah Yeahs. She's the only female singer I can think of who compares favorably with Bon Scott (the original singer of AC/DC). She can shred her vocal chords with the best of them, but she also does low-down and bluesy. Too bad the band's second album was a bit of a disappointment.
Another group I just remembered is The Donnas, who are very fun if you like trashy rock and roll. Sort of like a female version of The Ramones, or a female version of early Poison.
And while we're including non-recent female artists, I'll put in an honorable mention for a strange all-female group called ESG, who played mostly instrumental funk in the early 80s, and wound up providing a lot of the sampled beats for early hip hop. Not really rock, but they can make you shake it.