GCALDaemon is an OS-independent Java program that offers two-way synchronization between Google Calendar and various iCalalendar compatible calendar applications.
open source jabber webclient mit openid unterstützung, teils java-basierend
ourTunes is the continuation of several open source projects designed to allow you to browse and download from other people's iTunes Music Shares
Cytoscape is an open source software platform for visualizing complex-networks and integrating these with any type of attribute data. A lot of plugins are available for various kinds of problem domains, including bioinformatics, social network analysis, and semantic web.