exercism.io
code practice and mentorship
Fairmondo
free market place in the hand of the users
Growstuff
tool for small-scale food growers
iNaturalist.org
social network for nature stuff
libraries.io
open-source discovery service
Morph.io
web scraping tool
Organization for Transformative Works Archive
archives of fanworks, including fanfic, fanart, and fan vids
planningalerts.org.au
planning alerts for Australians
TheyVoteForYou
Holding politicians accountable