This chapter demonstrates how the process of constructing a theory of authorship around a single individual, writing independently or authoring in solitary isolation, has become untenable. New media technologies make new forms of authorship possible and invite alternative methods of conceptualizing an author—from zines, to the Web 2.0, to comics. This chapter thus presents an overview of recent philosophical approaches to the question of collaborative authorship and advocates for an approach to the phenomenon that would rely less on authorial intentions than it would on commitments. The distinction has obvious implications for theories of authorship more generally: to call yourself an author, so it suggests, you have to be willing also to take ethical and intellectual ownership of what you have written.