There original samples and rules are located here: EC5.
Here are the artists and the sections they did (arranged in order of arrival, excepting Andrew Duke who had agreed to do the ending):
0:00-0:21.8 - electric brain reserve
0:21.8-0:43.6 - blue vitriol
43.6-1:04.4 - Andy_R
1:04.4-1:27.2 - Arctone (iteration 2)
1:27.2-1:49 - Fastus (Incredibly Weird Mix)
1:49-2:10.8 - Arctone (iteration 1)
2:10.8-2:32.6 - Meloday
2:32.6-2:54.4 - Andy_R
2:54.4-3:16.2 - Fastus (Buddhist Fantasy)
3:16.2-3:38 - Dolmensniper
3:38-End - Andrew Duke
For reference, here is the first IDM-Making Exquisite Corpse (the original site seems to have vanished), and here are links for the other three: