Geoffrey.landis writes: "Dancing emoticons, two-stepping cowboys, audacious audio: why are online ads so obnoxious? The answer, according to Tom Spring, is that they work by grabbing our attention. What you call obnoxious, they call "effective marketing." Spring makes his top-ten list of the most annoying online ads, that "make you long for the days when the most pesky ads promoted an X-10 wireless camera.:"