MapServer is an open source development environment for building spatially-enabled internet applications.
MapServer was developed by the University of Minnesota.
Map server supports industry standard data formats and spatial databases.
MapServer is released under an MIT-style license, and runs on all major platforms(Windows,Linux,Mac OS X).
MapServer is an Open Source geographic data rendering engine written in C.
MapServer allows you create “geographic image maps”, that is, maps that can direct users to content.
For example, the Minnesota DNR Recreation Compass provides users with more than 10,000 web pages, reports and maps via a single application.
It support for popular scripting and development environments such as PHP, Python, Perl, Ruby, Java, and .NET.
It supports popular Open Geospatial Consortium (OGC) standards including WMS, WFS and WCS.