Comprehensive mapping systems built with PHP MapScript (http://maptools.org/)
Mobile Geographics:
Simple recipes using PHP MapScript (http://www.mobilegeographics.com/mapserver/)
Tom Kralidis
Example of downloading point coordinates and creating a new shapefile (http://www.kralidis.ca/gis/eqmapping/index.html)
Python Cartographic Libary (PCL)
Mapping tools for Python, not necessarily using MapServer, but similar in features; also includes links to Cartographic Objects for Zope. (http://zcologia.org/)