Castor EDC - Castor offers you a user-friendly and fully featured application for electronic data collection.
Wren - Offset your carbon footprint by saving rainforests
OpenClinica - OpenClinica is an open source clinical trials software.
Capture - A great free screen capture utility that allows you to capture either a window or the desktop and save it to either a file or the clipboard.
GNU Health - GNU Health is a Free/Libre project for health practitioners, health institutions and governments.
Treepoints - Fight climate change and earn rewards