My research program examines how people engage with communication technologies by drawing on theoretical perspectives tied to mobility and identity. My first area of work explicates the role of mobility in communication, which affords opportunities to connect with – but also disconnect from – others anyplace and anytime. In this area, I leverage computational spatial methods to understand how spatial and temporal patterns underlie the usage of communication technologies. My second area of work focuses on identity, considering how mobile technologies can become integral to core aspects of the self. Taken together, I argue that how we move (mobility) and who we are (identity) are key to understanding how communication technologies are interwoven with everyday life.