Over the last couple of days I have utilised some excellent free GIS resources. I have listed these and some others below.
Geospatial Analysis: This is the free online version of de Smith, Longley and Goodchild’s excellent book by the same title. It provides full coverage of current GIS methodologies. It also provides extensive information regarding the various GIS software available.
GeoDa Center Tutorials: A range of tutorial material provided by creators of the GeoDa Software. I would focus on the R tutorials as the GeoDa tutorials are awaiting an update in line with the software’s latest release.
CATMOGs: A hugely successful series of publications that cover the basics of spatial analysis, they have been written by many of the pioneers in the field. Topics include The Modifiable Areal Unit Problem (Openshaw), Voronoi (Thiessen) Polygons (Boots), Spatial Autocorrelation (Goodchild).
CASA Working Papers: A shameless plug for my fellow researchers. The nice thing about these is you don’t need to be part of an academic institution to access academic research.
I am sure there are many others and I welcome your suggestions…