The following materials are relevant to our vision of free knowledge:

• Free as in free milk, published in freesoftwaremagazine.com, by David Jacovkis
• Nonfree software at schools, published in Dutch in Trouw, by Wouter Tebbens
• Dangers of copyright in the digital era, published in Spanish in La Vanguardia, by Wouter Tebbens
• Freedom to share knowledge, presented in Online Observatory for Cybersociety Congress 2006, by Wouter Tebbens.
• Extremadura: building the Information Society (almost) from scratch. A case study on the Spanish region of Extremadura, available in English and Dutch.
• The Knowledge Society from a freedom centred perspective. Conference paper presented in the Free Culture Research Conference 2010 in Berlin. Available in English (PDF: 179 Kb). Presentation slides (PDF: 1,39 MB).