Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Pitchdeck - Pitch Deck is a web-based solution to you create engaging presentations.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
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.
Bigtent - BigTent is a web-based organization and communication portal for groups.
Pitch Deck Hunt - Real pitch decks from 100+ of the best startups