The state government can present a map showing average income by region. Developers who want to publish maps on the web often discover that commercial tools cost too much and hunting down the free tools scattered on the internet can use too much time and resources show. Web Mapping Illustrated you how to create maps, even interactive maps, with free tools, including MapServer, OpenEV, GDAL / OGR, and PostGIS. It also explains how to find, collect, understand, use, and share mapping data, both through traditional Web and using OGC-standard services like WFS and WMS. Mapping is a growing field that goes beyond collecting and analyzing GIS data shows. Web Mapping Illustrated how to combine free geographic data, GPS, and data management tools into a single source for mapping information needs so you do not have to lose your way when looking for it. Remember the fun you had exploring the world with maps?