Hi Julian, Here are the presentations being held at Software Freedom Day 2011 at the CWI (Centrum Wiskunde & Informatica: National Research Institute for Mathematics and Computer Science), Science Park Amsterdam, the Netherlands. http://www.youtube.com/playlist?list=PLCD07C5B11EFB6AB0 Software Freedom Day 2011 playlist Subjects covered were: - Red programming language (a new REBOL dialect): New programming language which scales from systems programming to network- and application programming http://www.youtube.com/watch?v=wgtgoliZ454&list=PLCD07C5B11EFB6AB0&index=6 - Topaz: REBOL inspired HTML5 programming language http://www.youtube.com/watch?v=xBJHMkN9qJ4&list=PLCD07C5B11EFB6AB0&index=7 - Bitcoin: P2P Virtual Currency http://www.youtube.com/watch?v=hdNRw-LWDUY&list=PLCD07C5B11EFB6AB0&index=39 - WebODF: Work with your office files in the cloud, on the desktop and on your mobile http://www.youtube.com/watch?v=ZsiXvU0YxUU&list=PLCD07C5B11EFB6AB0&index=2 - Fossil: Simple, high-reliability, distributed software configuration management http://www.youtube.com/watch?v=hmJ4ulhZtoQ&list=PLCD07C5B11EFB6AB0&index=1 - OSEPA: Open Source software usage by European Public Administrations - NOiV: Netherlands Open in Connection http://www.youtube.com/watch?v=cDsW7X6l1m8&list=PLCD07C5B11EFB6AB0&index=10 - OSOR: Open Source Observatory and Repository Europe - Sakai: Collaboration and learning - for educators by educators http://www.youtube.com/watch?v=gs4lKnpj89Q&list=PLCD07C5B11EFB6AB0&index=3 - Age of Peers: Software re-use; New opportunities for Open Source service suppliers and governements. http://www.youtube.com/watch?v=xVPvAYEX6aQ&list=PLCD07C5B11EFB6AB0&index=8 http://www.youtube.com/watch?v=BJSLrNyHzRs&list=PLCD07C5B11EFB6AB0&index=9 - Diversia: Decentralized open source metaverse http://www.youtube.com/watch?v=uE_VA5wvuRI&list=PLCD07C5B11EFB6AB0&index=5