Ads on other websites is definitely lucrative business, but if you want to make a parallel to Google, adsense only makes up 28% of total revenue [1]. This makes

Ads on other websites is definitely lucrative business, but if you want to make a parallel to Google, adsense only makes up 28% of total revenue [1]. This makes me kind of skeptical that a similar system for Facebook would double or triple their revenue. It's definitely possible that the parallel is wrong though. [1] http://en.wikipedia.org/wiki/AdSense http://en.wikipedia.org/wiki/AdSense