Welcome to WebmasterWorld Guest from 184.108.40.206
I do pretty well with Adsense on my site and want to remain constant with that. I Any general figure would be of great help, I am looking at a starting point for a 160x160 image ad. no tracking, no cookies, no ppc
Assuming that your traffic is steady you can just pick a value that sounds reasonable. Not knowing your site I'll just pick $10 CPM so the math is easy. $10 CPM at 40 thousand impressions comes to $400 a month in total inventory, and since you don't want to do tracking, you probably also don't want to worry about rotation, so there you go. $400 a month.
For a very targeted, local site you could potentially look at $20-30 CPM or higher, depends on how targeted the site is. The more targeted the site, the more it's worth.
Does that help?
If you put it on the page along with an AdSense block, charge approx. what you earn from AdSense....