Since there are rarely open source "win" press releases, its valuable to note when organizations choose such solutions.
Per
Search Enterprise Linux:
...it's only natural that the cost-conscious, nonprofit $24 million company would turn to open source software to run the heart of its operations, from capturing and storing archaeological data to running routine business functions -- even its telephone system.
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Chief Information Officer Chris Puttick. "And open source is the best long-term cost-saver … and gives us the ultimate flexibility to adapt without restriction."
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[The CIO begain] starting with the servers, most of which now run on Ubuntu (some 6.06 Long Term Support [LTS] and others on 8.04 LTS), and the free version of VMware, then trying the OpenOffice desktop application and the PostgreSQL open source database, which has an add-on for a geographic information system (GIS).
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Additional changes are still under way, including migration to open source GIS packages, including gvSIG, QGIS and/or GRASS,...