PubSub, using their Linkranks method of analysis, has just opened up a series of community lists to help gauge popularity within different blogging communities.
And probably thanks to Steven Cohen, two of the first lists available are The Librarian List and The Law List. Steven is the editor for the Librarian list, and Kevin O'Keefe for the Law List.
I don't see Slaw on either list yet, but all things in good time I suppose. :-)