This is a very long PR piece masquerading as a news article, designed to pump up a pathetic and doomed cause. Look closely and you will see that the "successes" he cites of companies no longer running ads during Rush's show are all companies that deny they ever ran ads during the show. The author uses these false "successes" as a springboard to suggest that more "successes" may be forthcoming, when in fact, this campaign can point to no verified successes at all, nor any concrete examples of future ones. I'm a professional writer, I've worked in radio and advertising for 25 years, and I've written thousands of radio commercials, press releases, etc. This one is as transparent as a freshly-washed window.
BTW, the boycotts and demands that people be taken off the radio are standard tools of liberals, not conservatives. I can't tell you how many talk show hosts I know who have been the targets of demands that they be silenced for saying something someone disagreed with, and it's always from the left. People on the right call in and argue with you; those on the left demand that you be fired.
Thanks HHFi, you are quite correct. I've done a little PR stuff, and yeah, it's pretty transparent push writing.