Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Huntathon - Browse and submit Product Hunt Global Hackathon projects
Krue - Twitch for music: live streams from amazing musicians
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.
Vampr - Connect with musicians, industry & music lovers alike
CoFoundersLab - Meet 250,000+ entrepreneurs online