WLS 890 AM out of Chicago has joined the growing legion of stations broadcasting on the Web. Using RealAudio format, a good dialup connection can just manage reasonable quality audio. Usually much better audio than trying to listen with a regular radio despite their immense multi-state groundwave coverage. The increasing electronics and metal building construction rob indoor listeners of traditional AM radio coverage, and even broadcast VHF FM radio. This online listening format will probably only grow as internet connections and computers become faster.