Like songs or what?
Well, I'd say go to YouTube and watch their PVs. Besides the songs being absolutely fantastic, their videos are really unique and interesting.
Also, if you can't find their music anywhere else, go to
IMEEM - what's on your playlist? and get an account there. You can find a lot of J-music on there and it's free. You just have to be a member to listen to some of their stuff.
My personal favorite song by Acid Black Cherry is Koi Hitoyo
but they have a lot of good ones.