A key characteristic of all studies mentioned is that they consider website quality from the customer’s (user or visitor) perspective. In practice, however, managers often prefer web metrics based on clickstream data to study online customer behaviour. An important reason for not conducting customer interviews is that many practitioners already feel overwhelmed by the sheer amount and apparent richness (detail) of the available clickstream data. Hofacker and Murphy [15] refer to these data as “instant, direct and automatic Internet feedback”. Day after day, gigabytes of new data become available, which seriously limit the practitioner’s appetite for even more data. Still, the available information appears to be underutilized by both practitioners and academics