Andersen co-founded the punk activist organization Positive Force D.C. in 1985, and the We Are Family Senior Outreach Network in 2004. Together with his wife, Tulin Ozdeger, he is the co-director of We Are Family, which serves low-income seniors in the Shaw, North Capitol Street and Columbia Heights neighborhoods of Washington, D.C.[citation needed]
He has contributed to several other books including Sober Living For the Revolution: Hardcore, Radical Politics, and Straight Edge (2010), We Owe You Nothing: Punk Planet, the Collected Interviews (Expanded Edition) (2008), Rad Dad: Dispatches From the Frontiers of Fatherhood (2011), and Rock Politics: Popular Musicians Who Changed the World (2012).
^Andersen, Mark; Heibutzki, Ralph; Auguste, Barry (2018). We are the Clash: Reagan, Thatcher, and the last stand of a band that mattered. Akashic Books. ISBN9781617752933. OCLC1007759538.