The Personal Data Interchange (PDI) standard was initially developed by Versit for the communication of data including the popular vCard and vCalendar types.
This Java package allows a programmer to take an InputStream and parse its PDI data.
JOrganizer is a webbased PIM (Personal Information Manager), written in Java. With it, you can manage your contacts, emails, time and more. It is based on JSP, Servlets, Struts, Castor, the xml.apache.org API's and other Open Source projects.
businetz is a web-based application which enables users of the popular business network XING to create a sophisticated visualization of their personal network.