AgileVentures
source code to agileventures.org
Alaveteli
easy FOIA requests for any jurisdiction
Autolab
course management and auto-grading of assignments
Drug Gene Interaction Database
The Genome Institute's drug gene interaction database
Ekylibre
farm management information system
Fairmondo
free market place in the hand of the users
Gamocosm.com
Minecraft server hosting
lobsters
link-aggregation site, inspired by Hacker News
Notebook Gallery
enterprise Jupyter notebook sharing and collaboration platform
OpenFarm
open database for farming and gardening knowledge
pinballmap.com
source code to pinballmap.com
TagTeam
social tagging for academics
TaxonWorks
workbench for biodiversity informatics