I actually wrote a piece on this in response to a brainstorm on business models: http://blog.chewxy.com/2013/03/06/startup-business-models-advertising/ http://b

I actually wrote a piece on this in response to a brainstorm on business models: http://blog.chewxy.com/2013/03/06/startup-business-models-advertising/ http://blog.chewxy.com/2013/03/06/startup-business-models-ad... I work in advertising, and I think that is a pretty good guide. Here are the numbers in case you can't be arsed to click on the link: Assuming you managed to secure a $0.50 CPM deal. And you're running 1 Dyno and 1 Worker on Heroku. To break even you need about 70k ad imps (~ 25k page views) per month. BUT the underlying assumption that you can get $0.50 is wrong. It's actually really less than that, don't be seduced by publisher networks that say they can give you more. Always look at the small prints. Also bear in mind that a lot of publisher networks (that pay relatively well) do have a minimum imps per month requirement - most start about 500k. Adsense of course has no minimum