Uniqode - Uniqode: Revolutionizing QR Codes, Simplifying Solutions.
Huntathon - Browse and submit Product Hunt Global Hackathon projects
QR Code Generator For Developers - A quick API to generate QR codes in your apps
Foundler - Online hackathon weekends. Attend every other week.
Visualead - Visual QR code generator
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.