The lesson? It appears that the people who visit a site through a search engine or a link are a different bunch than those who subscribe through an RSS feed. The people who go to the site through a browser might be shopping around for a wireless device so they would respond to an ad for wireless gadgets. But someone who subscribes a feed already has a BlackBerry and the gear that goes with it. An ad encouraging them to buy a BlackBerry or even to dump the device for a Treo wouldn’t work.
Heather is so right.