Fortune published an excellent article about the upcoming competition between imeem and soon-to-be-launched MySpace music.
(Lirix CEO Blogs:) "The piece contains some good information regarding CPM rates at the online ad-supported music services. The author points out the dilemma well known to those in the field - that these rates are quite low.
Ad-supported music will not escape the low ceiling of online display advertising CPMs until it moves from streaming to downloaded tracks."
Beyond this must-read article, what I found interesting are the numbers. imeem CPM=$4? wow, not bad. I'm hearing not to bet on $5 on mobile CPM, knowing location, age and possibly gender.