The Norwegian Mapping Authority has announced that they will open its topographic datasets to the public, free of charge, a milestone in Norway’s mapping history. Norway will follow progressive countries like Denmark, Finland and New Zealand, considering geographic...

Pan European data portal, providing access to open, freely reusable datasets from local, regional and national public bodies across Europe: http://publicdata.eu/

The European Commission Data Portal provides access to open public data from the European Commission: http://open-data.europa.eu/open-data/

The report on EFGS 2012 conference can be found in the "Demografie, Revue for Population Research"  on pages 423-426.

2011 Estonian population and housing census total population grid data are free. Other indicators are fee based. The data can be ordered from here. More info on  population density based on Population and Housing Census 2011 can be found from here.

New statistical e-Atlas by Eurostat can be found here.