Are you wondering if it makes sense to advertise on your favorite social network? Facebook, Twitter and LinkedIn all have different demographic profiles and use cases that may provide good advertising opportunities. All three platforms are also developing new and innovative ways to target advertising messages, based on the overwhelming amount of data they possess about their users. Marketers should explore the paid opportunities social networks offer with as much thought and effort as they experiment with the 'earned' and 'owned' aspects that these networks provide. Depending on your business objective, one platform will likely prove more useful than others.