Music news website - they cover every kind of indie music there is... as long as the kids are listening to it, it will be on Pitchfork
If you ever need to hear what a band/performer sounds like, look for them on myspace.com!
You can find a lot of hard to find albums on CD Baby - they have loads of indie-folk musicians on here with comprehensive bios and sound clips
Great resource for new music! The Magazine comes with a sampler CD every 2 months. Also they have coverage on culture, books, film and technology