Lucy, I found the link I was looking for... Chalk Hill Nursery (now out of business) had a page where they listed their favorite clems for shade. By no means is the Chalk Hill list complete (it's a little old, so the newest shade-tolerant cultivars will not be listed), but it might be helpful until I get my full list organized. Here's the link:
http://www.chalkhillclematis.c...
HTH! Evey =)