For a very nice description of electronic music genres, use wikipedia (ambient, idm, techno,...). However, the definition we like more is "electronic music". "Electronic music refers to music that emphasizes the use of electronic musical instruments or electronic music technology as a central aspect of the sound of the music."
COCOON
Clubmusiclovers
CreativeCommons
Culturaelettronica
DAT
David Sylvian
Delirium
Einsturzende Neubauten
Freesound
Groove
Hardwax
Italy gig list
Ken Ishii
Link
M-nus
Maffia
Modul
Mute
Nick cave
Outline
Rising High Records
Robotron radio
Sónar
TECHNO BAR
ultraworld
UR
vinilificio
WARP
Willian Orbit