The document discusses a study that compares user preferences and perceptions of the Yahoo and MSN web portals. It provides background on the history and changes made to each portal over the years. The study aims to investigate how attributes like information architecture, aesthetics, and navigation impact user preference and evaluation. Fifteen participants performed tasks to assess their pre-use perceptions and test usability while using the portals. A questionnaire addressed how attributes influenced perceptions. The study seeks to understand why changes were made and how services and usability have evolved to inform portal design.