This paper presents an easy-to-use service creation platform for realization of applications handling real-time streams and data. This platform, called WebDesk, is implemented using the platform independent Java language. WebDesk includes an application-level network layer, called the Tunable Multicast Platform - /TMP which is presented, as well as a couple of applications exemplifying the usage of /TMP; the audio- and whiteboard-agents, and the mWeb-application. The mWeb is an application for scalable distribution of HTML-files and synchronization of web browsers.