Founders Nation - Find or become a startup cofounder
Pitchdeck - Pitch Deck is a web-based solution to you create engaging presentations.
CoFoundersLab - Meet 250,000+ entrepreneurs online
Attach - Gain the insight and control you need to close more deals. Attach helps you understand how your customers interact with your content so you know how to time and tailor your follow up for maximum impact.
Findnlink - Find people to work with on your ideas.
Pitch Deck Hunt - Real pitch decks from 100+ of the best startups