Washington Post: Microtargeting has growing influence in political campaigns, says Interactive Advertising Bureau

MediaPost: If 2008 Was 'Youtube Election,' What Is This? Answer Might Surprise You

If 2008 Was 'Youtube Election,' What Is This? Answer Might Surprise You

Frontline: The Digital Campaign

NPR Morning Edition: What We Can Learn From How Much A Campaign Spends On Political Ads

Roll Call: Online Political Advertising Gets Personal

Voters Going Off the Grid 2012

Campaigns & Elections: The evolution of experimentation

New York Times: As Viewing Habits Change, Political Ads Switch Screens

NPR All Things Considered: Political Ads Target TV, But Not Everyone Is Tuning In