WARP RECODRS
home of Squarepusher, Aphex Twin and Boards of Canada
Also try BLEEP (WARP RECODRS) digital downloads from Warp, u can download all their albums now there - Great Collection!!
Bleep music has no DRM or copy protection built in. They believe that most people like to be treated as customers and not as potential criminals. U can listen to all tracks as well
TIGERSUSHI RECORDS
good mail store where u can listen songs before purchase and they have a internet radio too
FORCED EXPOSURE
good selection of electronic music - and they write comments about every release - all labels
TOUCH
fine english label founded in 1982 (more info here) and home of artists like Biosphere, Fennesz, Hazard, Philip Jeck and many more
BPITCHCONTROL
german site, mailorder and label - electronic music
ROUGH TRADE
good site
POTATOLAND
they show unique html, flash pages