Proday is an international, internet-based school network. The aim of the network is, on the one hand, to offer young people all over the world a platform on which they can present and communicate their initiative for global sustainable development. On the other hand, young people can find suggestions, impulses and ideas on Proday about how they can contribute to and help shape sustainable development within the scope of their own personal possibilities.

The network's particular focus is on strengthening solidarity between students from richer and poorer countries around the world, through school and learning partnerships between, to put it simply, the North and the South. The digital platform Proday supports these partnerships through a wide range of information, discussion forums and websites that the network's participants can design themselves.

Sell ​​Word infrom 2001 to 2004 coordinated by the World Contract Foundation in cooperation with the youth organization YOIS - Youth for Intergenerational Justice and Sustainability.