I believe I discovered Miss Youngs by following one of those "If you like X artist, then you'll like Y artist" recommendations on emusic.com. And they were right! Really, I'm a sucker for this kind of thing. Waifish singer/songwriters. Though Youngs has a bit more grit than is usual for that genre. She has two albums out, Batten the Hatches and Transmitter Failure. I recommend them both.
I'm posting a video here, "Clean Break" off her newest album. There are more videos on the youtube, or at her site, jennyowenyoungs.com.