On another mailing list, someone asked if there was any list specifically about bit-slice design and microcoding. I don't know of one, so I've created a new mailing list specifically for those topics:
http://lists.brouhaha.com/mailman/listinfo/bit-slicers The intent is for the list to cover technical discussion of bit-slice hardware design and/or microcoding. In other words, discussion of microcoding that doesn't use bit-slice hardware is fine.