Natural Earth is a public domain map dataset available at 1:10m, 1:50m, and 1:110 million scales. Featuring tightly integrated vector and raster data, with Natural Earth you can make a variety of visually pleasing, well-crafted maps with cartography or GIS software.
allows you to create professional-looking interactive maps from a wide variety of geographic data in only a few minutes. Maker runs right in your web browser. it’s very easy to find and add different data to your map. You can also add your own data to these maps by uploading it through Finder.
The Global Poverty Mapping Project seeks to enhance current understanding of the global distribution of poverty and the geographic and biophysical conditions of where the poor live.
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S. Sun, S. Prasher, and X. Zhou. Conceptual Modeling for Advanced Application Domains, volume 3289 of Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2004)