As I recall, although not commercial advertizing, Klaatu themselves had a note relative the the Canadian Wildlife Federation on the back cover of the Endangered Species album. I wonder who's idea that was... Robert -----Original Message----- From: klaatumail@xxxxxxxxxxxxx [mailto:klaatumail@xxxxxxxxxxxxx] On Behalf Of Jaimie Vernon Sent: Friday, August 07, 2009 2:33 PM To: klaatumail@xxxxxxxxxxxxx Subject: [klaatumail] Re: Amazon CD sales Yup. And, in fact, record labels were advertising on the back cover of LPs and in the dust sleeves since the invention of the format in 1949. This is NOT a new concept...what it is, is a revival of an old concept.