+ Taking a Cue from U.S. Landsat and GPS Programs, Europe Permits Free Access to Sentinel Earth Observation Data via Space News
+ GMES and Data, like Geese and Golden Eggs via ESA
+ A Study on the Economic Benefits of a Free and Open Data Policy for Sentinel Satellite Data (PDF)

Above the Earth, Below the Surface: Landsat’s Role in Monitoring Water Quality
Safeguarding freshwater resources is crucial, and while scientists use a variety of ground-based techniques to gauge water quality, the Landsat program has provided water quality data from orbit for decades.