What are some good bands I should try?
I love alternative, some pop, indie, acoustic, folk.

Some of my favorite bands are:

Paramore
Death Cab for Cutie
The Postal Service
Keane
Guster

Some of my favorite singers are:

Regina Spektor
Imogen Heap
Ingrid Michaelson

So, if you could help, that’s be really great.

Check out Pandora and Last.fm. They are awesome sites that allow you to find new music to the ones you already love. I have found so much new music from Last.fm and it is a fantastic community and site.