Through Google you can track web searches. But searches are a different matter from actual traffic.
Using the web traffic tracking service Alexaholic, one can track a partial representation of traffic to any number of websites.
Note that traffic (defined as reach) to both Sirius and XM is generally down over the past year – with XM declining much faster than Sirius.
And note that the October spike for Sirius corresponds to the two-day free online trial for the Howard Stern show.
Finally, note the traffic for HDRadio.com which, although not a destination on the order of Sirius or XM, is the go-to site for further information about HD in many HD radio ads and promotions and is, thus, a good metric to gauge consumer interest.
To the degree that these estimates are correct (Alexa isn’t perfect) and to the degree that web traffic is a proxy for consumer interest, it looks like a long and slow race to the bottom.
While interest in satellite radio is diminishing, interest in HD shows no signs of a pulse.