“Sirius, XM, and HD: Consumer interest reality check”

“While interest in satellite radio is diminishing, interest in HD shows no signs of a pulse.”

http://www.hear2.com/2007/02/sirius_xm_and_h.html

"What kind of digital radio are listeners searching for?"

http://www.hear2.com/2006/10/what_kind_of_di.html

These are some very interesting articles by Mark Ramsey - if interested, on-going interest in HD Radio can be checked by running Statsaholic and Google Trends:

http://www.statsaholic.com/hdradio.com
http://www.google.com/trends?q=%22hd+radio%22%2C+%22internet+radio%22%2C+xm%2C+s irius%2C+podcast

Interest in Satelite Radio, shows a much different story:

http://www.statsaholic.com/sirius.com
http://www.statsaholic.com/xmradio.com

This "on demand" world we live in is probably responsible for killing interest in the concept of radio.