It's live - I've taken the liberty of creating a GWJ group. Here's the link:
But I kind of effed up. When you initially create a group, you have the choice to make it private or public. I left it private, thinking I could change it later. So far, there doesn't seem to be a way to do it.
So, until I get that figured out, link to your Steam ID here and I'll get you added to the group.