So you've got 2500 unique visitors this month doing 50k page views. general, social network traffic might generate $1-2 cpm so that's $100/month in revenue.

if you have a high value niche with targeted, quantifiable traffic you can get that maybe as high as $50/cpm on a well marketed site (read: you have ad sales people or you're cramming the site with ad channels.)

This guy http://www.johnchow.com/make-money-on-the-internet-april-2007/ has grown his blog to 250,000 page views, crammed it with every kind of contextual ad you can think of, is a compelling writer with great content. He's at $50/cpm. Of that, 40% comes from a pay-per-post ReviewMe ad thing, so his ads are generating about $30cpm.

So you can put adsense on the page, but you won't make any money. and you're a ways off from doing banner ads.