Made for map navigation, geocoding, and route planning. An open source java toolkit for interactive maps - GeoTools provides a class library for building interactive maps that can be included in web pages. Tools for zooming, paning, highlighting and selecting are easy to set up, and the Open Source nature of the project makes the addition of custom features simple. FREE viewing online USGS Topographic Maps, NOAA Nautical Charts, Aeronautical Charts and high altitude photography. Includes total US coverage.
All source code is available.
Baltic Environmental Atlas - Interactive environmental maps over the Baltic Sea region. The themes, such as population density and landuse, relate to human impact on the environment in the region. GeoTools - An Open Source Java GIS toolkit. Supports the shapefile format but support for others, including GML is in development.