The World Wide Web has grown at a spectacular rate as a medium for pro
moting and marketing products and services. At the same time, little i
s known about the effectiveness of advertising on the Internet. Yet, t
he Web offers unique, but so far largely unexplored, research opportun
ities. In this paper, we develop and apply a conjoint analysis-based m
ethodology to evaluate the design and the effectiveness of promotional
content on the Web.