FREDERICK J. RIGGINS is an Assistant Professor in the Department of Information and Decision Sciences of the Carlson School of Management at the University of Minnesota. His teaching interests include electronic commerce, e-business strategies, economics of information systems, and telecommunication policy. His research focuses on new business models for Internet-based commerce, strategies for implementing interorganizational systems, measuring the value of information systems, and policies affecting the diffusion of information technology. He has spoken at many conferences and published in several leading academic journals including Management ABSTRACT: We develop an analytical model of a separating equilibrium for a two-tier fee-based and sponsorship-based information Web site. We examine the monopolist's choice of content quality and price for a fee-based site targeted at high-type consumers and the content quality level for a sponsored site offered free to all consumers. We show how a reduction in the potential for advertising revenues results in lower content quality on the free site, but permits the seller to raise the fee charged to high-type consumers. We also show how differences in consumer tolerances to ads affects content quality, banner ad volume, and usage fees. In particular, the seller can increase profits by making ads more attractive to either high-or low-type consumers, but rarely both at the same time. We show the conditions that determine which consumer segment the seller should seek to improve ad relevancy.KEY WORDS AND PHRASES: information Web sites, online market segmentation, product cannibalization. Downloaded by [UQ Library] at 23:46 27 July 2015 70 FREDERICK J. RIGGINS THE INTERNET AND THE WORLD WIDE WEB have altered the way many people gather various types of information, ranging from daily news stories to contact information for old high school classmates to highly technical consultancy reports. In their search for a path to profitability, Web-based information providers have attempted various combinations of free sponsored sites and fee-based sites. Daily news stories, sports scores, and stock price information can be found on numerous sponsored sites such as CNN.com, Yahoo!, and BusinessWeek Online. Due to the collapse of the dotcom economy, these sites have struggled as the potential to gain revenues from banner advertisements has plummeted. Many sites such as Classmates.com, Britannica.com, and AOL.com provide some content for free on a sponsored site, but seek to entice users to pay a subscription fee for unique content not easily found elsewhere. For example, Classmates.com allows the nonpaying user to read a short bio of old classmates, but requires a $29.95 annual Gold Membership fee to be able to actually contact old friends and engage in chat and discussion board community features. Britannica.com offers some free content on a sponsored site, but continuously prompts the user to pay a $50 annual membership fee in order to receive full use of Britannica's unique information ...