Newscluster (that's the name I picked) is almost ready to use for Planet Lisp. It was having trouble loading Bill Clementson's RSS feed, but it's not a bug, it appears that the feed is busted. Crap. Anyway, even half-baked, newscluster is nicer to work with than spycyroll, the half-baked python aggregator that Planet Lisp currently uses.
Random blue sky: why limit symbol documentation lookup to the HyperSpec? It'd be nice if package authors provided a way to map from symbols to documentation URLs, preferably in a programmatic way that integrates with SLIME.