American Support Groups. Part IV: DC United and San Jose Earthquakes – by Stefan Shultz of Desperados Dortmund, 3/5/2011

District Ultras: Small Numbers, Big Support in DC – PitchInvasion.com, by Tom Dunmore, 2/27/2012

Game 6: D.C. United vs. Impact de Montreal — The Wild, The Mischievous: The District Ultras – mlsroadtrip.com, by Evan Ream, 7/2/2012