HalloweenRadio.net - HalloweenRadio.net actually has three channels to choose from: "Halloween Radio", "Halloween Atmosphere", and "Halloween Oldies".
13th Track - 13th Track Halloween Radio offers a clever flash animated music player with good stream of Halloween music.
Boogeyman Radio - "...horror sounds on the net! Songs, scores, rock, psychobilly, metal, and more..."
Horror Old Time Radio - An Old Time Radio Halloween show.
The Never Ending Wonder Halloween Radio Empire - several stations features several genres of Halloween-related music and songs.
Halloween Stations listed at Shoutcast.com - dark music for tortured souls from a variety of sources.
Channel 66.6 HM Haunted Radio - "Your radio home for everything horror!"