I used to dip in and out of comp.lang.lisp all the time. Had it piped to my email account and everything. But that damn place is constantly the target of spammers, and even Google seems to lack the ability to filter it. So I gave up on it.
This LispForum could give Common Lisp the web presence it needs. Plus it's one of the few Lisp sites that doesn't look like it comes out of the 1990s (yeah, even with its stock template design).