Marek has been working to help advocates use technology since 1995. In the mid-nineties he co-founded the International Network of Contemporary Art Centres and worked with others to create a television programme about independent culture in Poland. He was director of the Stefan Batory Foundation’s Internet programme (Warsaw), sat on the board of Klon/Jawor (a research and infrastructure NGO) and The Second Hand Bank. Marek worked as a consultant to many funding agencies focusing on information and communication strategies for civil society in Central Asia.