The Black Crevasse Forum is now up for ice-related discussions. You can reach it via the link or via the “Black Crevasse Forum” tab at the top of this Frontierwatch blog.
You must be registered to post, but the registration is painless and, even though the instructions say that you must have a “valid email address”, this is not the case. Just make up an email and you will be able to post immediately. (Obviously, if you want other forum members to be able to contact you, use a real email.)
I put a forum up a few years ago and it was eaten alive by spam. We’ll see how this one goes. If no one uses it, I’ll just take it down. My email is on the sidebar; let me know if there are technical problems using the forum.