The difficulty in marketing to sites like Facebook, Myspace and more is the sheer volume of page views and audience these sites have.  It could be extremely difficult to target these audiences effectively, but Business Insider has an interesting case study on one company that s proven successful.

Earlier this year, Huggies sponsored a Moms-only Facebook app called “Circle of Moms.”

But before it did, AppSavvy set expectations for how users would react to the ads. AppSavvy said how many users it expected would interact with Huggies-branded areas of the app.  AppSavvy also set expectations for how many times users would run diapers-related queries within the app after seeing Huggies ads.

Those numbers were the KPIs [Key Performance Indicators].

In the end, the number of clicks into Huggies-sponsored areas of the app and diapers searches exceeded AppSavvy’s expectations. Huggies, as well as its ad agency Mindshare walked away with the notion that hey, maybe social media advertising doesn’t stink after all.

[More case studies at Business Insider]