Egon Willighagen is assistant professor at Maastricht University, in the Department of Bioinformatics. Egon is active in various projects and initiatives connected to open science. For example BridgeDb, a framework for finding and mapping equivalent database identifiers, WikiPathways, a database of biological pathways, The Chemistry Development Kit, a collection of modular Java libraries for processing chemical information and Bioclipse, an open source platform for chemo- and bioinformatics.