Homelessness among young people aged 13 to 30 is a pressing problem with lasting social and economic consequences for the U.S. By one estimate, 3 million young people experience homelessness annually; that is, about 1 percent of the U.S. population is both young and homeless at some point each year [1]. The psycho-social factors of homeless young people have been studied extensively in the social sciences. In sum, this research shows homeless young people to be a heterogeneous mix of ages, genders, races, and ethnicities, and that the interrelated causes and effects of homeless are multifarious. Among the common causes are intergenerational poverty, severe family conflict often connected with substance abuse, mental health disorders, and abuse and neglect by caregivers. Many homeless young people suffer mentally and physically from the longterm effects of childhood trauma.Homeless young people also adopt digital technologies. Indeed, our own work shows that homeless young people desire digital technology in all its forms [2]. Moreover, particular uses of digital technology might have far-reaching impacts. Maintaining ties with family through Facebook, for example, appears to be correlated with reductions in sexual risk-taking behaviors among homeless young people [3]. Accordingly, we invite readers of this forum to consider how ordinary, everyday interactions with technology may be conditioned by the extraordinary circumstances of homelessness [4]. i n t e r a c t i o n s N o v e m b e r + D e c e m b e r 2 0 11 73 uniVerSaL inTer ac TionS Forum