Digital writing is a practice with which university students engage regularly. Increasingly, students communicate with each other and their lecturers using email, message boards and online posts, among other forms. Unsurprisingly, the research into writing in digital contexts has focused on these types of texts, and although such writing departs in its production from more conventional "essayistic" writing (Lillis 2001), it is still broadly linear in terms of the expression and organisation of knowledge.