Via @mattwynn: Introduction to open-source GIS tools for journalists

Luckily, as the need for geographic literacy has increased, digital cartography has exploded. Interactive maps and location-based services have unleashed a torrent of spatial tools throughout the past few years, making everything from analysis to sophisticated Web applications accessible.

There are a bevy of tools available, but here’s an introduction to those that make up my open-source GIS suite.

Matt has put together a really good intermediate overview, with resources for QGIS -- an open-source version of ArcView -- PostGIS, PostgreSQL and OpenLayers.