As well as www.powpowpow.com, I also run [well, used to run....it went a bit dead but now I am trying to revive it!] an online shop. I am now making it into a shop to sell unsigned/smaller indie label stuff, so if you'd like us to sell your stuff, please contact me! We'd probably take a small commision of around 20%, but you'd get most of the money...
PM me if interested!