Links ...
Music download / subscription / CD retail
members.cdbaby.com - sellers/merchants link
www.cdbaby.org - shop
iTunes music store - sellers/merchants link
www.emusic.com
www.spotify.com
www.amazon.com
Online merchant / payment systems
Retail organisations
www.uc-council.org/ - UCC site (administors Universal Product Codes - barcodes for the world)
www.e-centre.org.uk - e-commerceUK's site (administors barcoding for UK companies seliing worldwide)
www.musicindie.com - Association of Independant Music