This is a report of the findings of research commissioned by the Horizontal Policy Integration Division (HPID) of HRSDC. The objectives of the study were to determine the extent, nature and benefits of social media use by five vulnerable populations – Aboriginal peoples, people with disabilities, recent immigrants, the homeless and seniors – and by the institutions that serve them, and to explore the extent to which such media help to overcome social isolation and barriers to inclusion in Canadian society. The Division also requested information on the topic from three levels of government – municipal, provincial and federal. The methodology consisted of semi‐structured telephone interviews with sources, primarily but not exclusively, in the National Capital Region, and a literature review.