"Digital humanitarianism" is a new socio-technical development which incorporates social media, crowdsourcing, and Big Data into humanitarianism and emergency management. Digital humanitarianism melds together these new technologies with new institutional practices and relationships, drawing on the labor and knowledge of laypeople from across the world. This reconfiguration of data, labor, and technology raises pressing new questions for scholars interested in social and political implications of spatial technologies. Although digital humanitarianism explicitly uses spatial technologies to bridge disparate geographies, to date, very little work has clarified the theoretical frameworks from which geographers can draw to position it in relation to GIScience and the geoweb. In this chapter I argue that geographers are uniquely well-positioned to contribute theoretical insights into digital humanitarianism. I identify three theoretical frameworks that geographers can engage in order to draw resonances and linkages between digital humanitarianism and broader debates in GIScience and the geoweb. Specifically, first I show that particular attention should be paid to the spatialities of digital humanitarianism - who produces what kinds of data in what kinds of places? Second, I argue that the use of Big Data in digital humanitarianism reconfigures relations between humanitarianism and the private, for-profit sector. This goes hand-in-hand with the reconceptualization of data as aid in crisis zones. Third, I suggest insights from spatial technology research can illuminate the new struggles over knowledge collection and representation in digital humanitarian systems. These three areas all have strong linkages with extant GIScience and geoweb research, and can expand our understanding of digital humanitarianism as a social and technical phenomenon.