@panzade,
Thanks for posting Sarah Jarosz. She has been going to school here in Boston (not certain she still is) and so had developed quite a following and a lot of airplay on WUMB (you can listen online). I think she was the new artist of 2010.
Have you heard her musical setting for Poe's Annabel Lee?
You can catch her appearance on Austin City Limits with Steve Martin and the Steep Canyon Rangers on line as well.