"Podcast sponsors typically pay between $10 and $30 per thousand listeners, according to Mr. Nuzum"
http://www.theglobeandmail.com/report-on-business/serial-an-unlikely-hit-podcast-sparks-advertisers-interest/article21782490/
This puts ads on TMOS as $400 to $1200, which is interesting.
How long has it been since TMOS had an actual ad and not an affiliate thing?
I remember in the early days, there were a few, but they were mostly DC based.
I guess if the LFF could bring Mailkimp on board, he'd be looking at $8k to $24k / month
Which isn't much compared to Serial's $1.36M to $4.08M / month (assuming Mailkimp didn't get a flat rate)