CoFoundersLab - Meet 250,000+ entrepreneurs online
Flare by GoDaddy - Discover, give feedback and support startup ideas
Huntathon - Browse and submit Product Hunt Global Hackathon projects
Wittycircle - Networking tool for entrepreneurs, makers and curious minds.
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.
Generating Product Ideas - Find ideas for your next business or side project