As kens said, it's hard to beat good old usenet. Reading comp.lang.lisp is much easier for completeness. Now if the forum had a filtering mechanism a la slashdot for me to only look at comments with a certain point threshold, I'd be happier. I think I'll make that a separate post ( http://arclanguage.com/item?id=3920 ).
I just stopped checking my older threads - if someone leaves a comment on an old item, there's no way I'm going to invest the time to go looking for it.