On this page I will try to note down some of the places where I normally shop online, maybe not that relevant to the rest of the world then again maybe you could pick up on a bargain.
http://dk.wesellcd.dk(ok place, not that cheep anymore, very much like www.mediacentralen.dk)
http://www.it-netsupply.dk (I have not shopped here yet, but it looks cheap)
http://www.nierle.dk (Ok place lots of stuff in their store, expensive freight)
http://www.mediecentralen.dk (ok place, not that cheep anymore though)
http://www.mediebutikken.com (I have not shopped here yet, but it looks cheap)
Centralised Online Archive for Commercials;
Here you will find a gathering of many Danish printed commercials, even made search-able.. Clever..