I'm looking for free / open source GIS education sources for advanced GIS users. Specifically sources that cover programming, spatial analysis, modeling, spatial databases / data management. I use mostly ArcGIS as a federal employee, but sources that go into conceptual concepts are appreciated too.
I'm a big fan of the Penn State Masters in GIS program because they offer many of their full classes under the MIT license. I'm also reading through the lectures from the Dublin Institute of Technology. I'm hoping that there are other high quality resources out there that I haven't come across yet.
While I would prefer actual courses that have some degree of interactiveness (like quizes or tasks associated with lessons), books should be considered if they are high-quality, free resources.
Best Answer
Boston GIS
"BostonGIS is a testbed for GIS and Web Mapping solutions utilizing open source, freely available and/or open gis technologies. We will be using mostly Boston, Massachusetts data to provide mapping and spatial database examples"
PostGIS ver. 2.0 Raster Quick Guide
PostGIS ver. 2.0 Geometry/Geography Quick Guide
PostGIS ver. 2.0 Topology Quick Guide
PostGIS 2.0 pgsql2shp shp2pgsql Command Line PostGIS ver. 1.5 Quick Guide
PostGIS ver. 1.4 Quick Guide
UMN Mapserver MapFile 5.2 Cheat Sheet more PostGIS 1.3.3 pgsql2shp shp2pgsql Command Line PostGIS ver. 1.3.1 Quick Guide
ArcGIS can be connect to Postgres/PostGIS with ArcSDE.
for GIS Data - see External Data on the Boston GIS website.