Social networks such as Facebook, MySpace, and LinkedIn are powerful for message broadcasting and for brand awareness. Because these sites inherently connect people with similar backgrounds and interests, hub pages dedicated to products and services are often invoked either by fans or by marketers/businesses out a desire to create strong associations between individuals and products. On Facebook, the two predominant marketing tools are the application or Facebook Page; on MySpace, it is the customized profile. In this chapter, we will look at how to use these sites and how they benefit marketers aiming to expand the reach of their products.