The aim of this study was to investigate the nature of enjoyment as experienced by users of the web and to provide an instrument for the measurement of this construct. A review of literature across disciplines indicated that enjoyment was characterised by: (i) engagement in an activity; (ii) a resultant positive affect (e.g., pleasure, happiness, contentment, satisfaction); and (iii) the fulfillment of some need or desire. An instrument was developed using Churchill’s method and validated. Constructs and measurement scales developed in this study have practical value for predicting and explaining the enjoyment experiences of web users.