Web 2.0 technologies have spawned different types of information sharing systems, including online bookmarking systems. These information sharing systems have facilitated collaboration among their users with similar interests. They also provide a powerful means of sharing, organizing, and finding contents and contacts [1]. In this paper we focus on evaluating social interaction among users on Del.icio.us, which is one of the most popular and paradigmatic online bookmarking systems.
展开▼