The World Wide Web has undergone major changes in recent years. The idea to see the Web as a platform for services instead of a one-way source of information has come along with a number of new applications, such as photo and video sharing portals and Wikis. In this paper, we study how these changes affect the nature of the data distributed over the World Wide Web. To do so, we compare two data traces collected at the web proxy server of the RWTH Aachen. The first trace was recorded in 2000, the other more than seven years later in 2007. We show the major differences, and the similarities, between the two traces and compare our observations with other work. The results indicate that traditional proxy caching is no longer effective in typical university networks.