Any global statistics on how the number of pageviews correlate to the earnings from ads shown? Will it make any sense to display advertisements for 200k pageviews / month, or will it bring just cents / a few dollars per month (in which a case it’s not worth the effort)?
Also, @HAWK, since you know lots about communities, how much showing ads will affect user experience in an online community? Is it important to make it ads-free for logged-in users? And any other advice is very appreciated.