CoFoundersLab - Meet 250,000+ entrepreneurs online
Huntathon - Browse and submit Product Hunt Global Hackathon projects
Supersourcing - Supersourcing is a platform that allows you to hire a professional freelancer in many fields.
Confs.tech - Open source list of tech conferences: JS / Ruby / Data etc.
PHfam - Find nearby Product Hunt members on the map
MVP-Challenge - 2 weeks. 1 MVP startup. $0 costs