Discusses the findings from a research study on how teens use popular social media and social networking sites. The study looked at the different sites, tools, and apps that are being used, with Facebook ranking the highest. It also looked at variables such as gender, family income, race and ethnicity, types of activities social media is used for, and access to technology. It also examined specific social media sites to see how teens are using them. Includes numerous graphs and tables. (Published: April 9, 2015)