The Java projection library is a partial port to Java of the popular PROJ.4 map projection library. Most of the common projections are implemented and the aim is to eventually support all the PROJ projections. This is a pure Java port and is not to be confused with the JNI bindings for PROJ.
gnizr_ (gə-nīzər) is an open source application for social bookmarking and web mashup. It is easy to use gnizr to create a personalized del.icio.us-like portal for a group of friends and colleagues to store, classify, and share information, and mash-
GeoTools is an open source (LGPL) Java code library which provides standards compliant methods for the manipulation of geospatial data, for example to implement Geographic Information Systems (GIS). The GeoTools library implements Open Geospatial Consorti
GeoServer is an Open Source server that connects your information to the Geospatial Web. With GeoServer you can publish and edit data using open standards. Your information is made available in a large variety of formats as maps/images or actual geospatia