Love how nobody touches this one.

Yakk, since early 2010, we spent about 2 years analyzing the industry, or lack thereof.

The reason advertisers stay away from podcasters is due to the profanity and use of copyrighted music etc. Also, as most do not conform to FCC Rules and Regulations, there is no bar set for advertisers to have any confidence in podcasters whatsoever.

Internet broadcasters however, maintain a level of professionalism and DO conform to FCC and other radio industry guildelines and DO maintain an advertiser base successfully.

As for pricing of what your individual space costs, there are many factors that go into pricing that out effectively and would depend on all of those factors (which vary with every show and/or broadcaster/podcaster).

It took us 2 years to figure out ours and it's no easy task. You likely won't get any successful broadcaster to give you the info you are looking for on this one.