Scrum for Trello - Adds functionality to Trello boards for your Scrum projects.
Huntathon - Browse and submit Product Hunt Global Hackathon projects
Ora - Welcome to your team’s command center. A place to track projects. Tasks. Time. Commits. Status Reports. Your entire product or business! It's the fastest-growing productivity suite your team needs right now!
CoFoundersLab - Meet 250,000+ entrepreneurs online
UpDiagram - Free agile project management tool for scrum team
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.