I think The Mouse's original story has a link to Marti's summary of the economics.

In it he suggests he has good stats:

Look at the logs of any web site that runs advertising, and the rate of blocking. A 2001 survey showed a rate of 1%, and it hasn't moved. I once asked for anyone to post a rate of even 5% on any site, no matter how nerdy, and got nothing. Compared to the other problems of running a web site, ad blocking is noise. That offer stands. Show me any site with 5% blocking, even if it's patchouli-scented-dvorak-keyboard-review.com.