I found this organization more interesting than the article. I was curious due to the density of advertising. According to their 2011 audit, the site generated more than $2.6M is advertising revenue that year.
> Website activity income generated on the Organization's website from advertisement placements is a function of website page views and price. The Organization's current partners are education- related firms, real estate and mortgage professionals, consumer companies, and Google. Website activity income is recognized as it is earned and for the year ended December 31, 2011 amounted to $2,671,405. Related website activity expenses are recognized as incurred and consist of expenses allocable against website activity income based on managerial assumptions. Website activity expenses amounted to $873,813 for the year ended December 31, 2011.
> Website activity income generated on the Organization's website from advertisement placements is a function of website page views and price. The Organization's current partners are education- related firms, real estate and mortgage professionals, consumer companies, and Google. Website activity income is recognized as it is earned and for the year ended December 31, 2011 amounted to $2,671,405. Related website activity expenses are recognized as incurred and consist of expenses allocable against website activity income based on managerial assumptions. Website activity expenses amounted to $873,813 for the year ended December 31, 2011.
Source: http://www.greatschools.org/catalog/pdf/2011_GreatSchools_Au...