The 1999 Content Distribution Services study examines an emerging service market focused on providing Internet content sites with new performance enhancements utilizing content delivery technology. In the study, we examine demographics, plans for content delivery service use, content site connectivity, current and future service plans, bandwidth utilization, desired service level agreements, technologies used to enhance performance, expenditures, the cost of content downtime, and challenges. Using supply and demand side information gathered in this study, we examine the opportunity for providers of content delivery services and manufacturers of content delivery products.