As digital technologies rapidly evolve, updating and enhancing models of digital literacy pedagogy in technical and professional communication (TPC) becomes more urgent. In this article, we use "digital life" to conceptualize the ever-changing ways of knowing and being in postinternet society. Using collaborative autoethnography, we investigate features of threshold concepts in TPC pedagogy that may support models of digital literacy that are resistant to tools-based definitions, foster student agency, and facilitate accessibility, equity, and justice.

Telemedicine is an alternative healthcare delivery system whereby patients access digital technology to consult with a physician virtually. Patients first interact with telemedicine via a consumer-facing website. Telemedicine promises numerous benefits to patients, such as increased access to healthcare, yet poor usability of the telemedicine user interface (UI) may hinder patient acceptance and adoption of the service. The telemedicine UI moderates patients’ ability to utilize telemedicine, and therefore it must be usable, but it must also be rhetorical to motivate patients to perform certain actions. Digital rhetoric refers to UI elements that influence user actions and knowledge and is tied to usability because of these same human–computer interaction (HCI) factors. This study examined the usability of three telemedicine provider UIs and by identifying usability problems, reveals digital rhetoric that is significant to telemedicine UIs. The article concludes by offering heuristics of digital rhetoric that lead to optimal usability.