Dance music is a niche, and so-called "rhythmic pop" stations have had a fierce but not always commercially sustainable following. There was a wide spectrum of disco-format radio stations during the late 1970s, but virtually all of them died out during the disco backlash; WXKS in Boston is one of the few notable survivors, now a Clear Channel Communications-owned top-40 station of considerable influence. Nevertheless, there are a large number of dance music stations available both on the internet and on satellite radio, mostly specializing in various forms of electronica. Both major US satellite radio services include disco stations.