Statistical toolsThe R Project for Statistical Computing R is a free software environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms, Windows and MacOS.
GIS resources (tools)GRASS GIS Geographic Resources Analysis Support System, commonly referred to as GRASS GIS, is a Geographic Information System (GIS) used for data management, image processing, graphics production, spatial modelling, and visualization of many types of data. It is Free (Libre) Software/Open Source released under GNU General Public License (GPL) >= V2. GRASS GIS is official project of the Open Source Geospatial Foundation.
QGIS A Free and Open Source Geographic Information System
GIS resources (data)DIVA-GIS http://www.diva-gis.org/ Global Administrative Areas Boundaries without limits Main menu http://www.gadm.org/ WorldClim - Global Climate Data WorldClim is a set of global climate layers (climate grids) with a spatial resolution of about 1 square kilometer. The data can be used for mapping and spatial modeling in a GIS or with other computer programs.
CGIAR Consortium for Spatial Information Spatial Science in the Service of Global Food Security and Sustainable Livelihoods.
Natural Earth Free vector and raster map data at 1:10m, 1:50m, and 1:110m scales.
EUFORGEN EUFORGEN is a collaborative programme among European countries to promote conservation and sustainable use of forest genetic resources. It serves as a platform for pan-European collaboration in this area, bringing together scientists, managers, policy-makers and other stakeholders.
HydroSHEDS HydroSHEDS is a mapping product that provides hydrographic information for regional and global-scale applications in a consistent format. It offers a suite of geo-referenced data sets (vector and raster) at various scales, including river networks, watershed boundaries, drainage directions, and flow accumulations.
mapcruzin.com Free GIS Shapefiles, Software, Resources and Geography Maps.