Radiate - It's not Tinder for festivals. A new way to meet people.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Highlight - "Highlight" physical books through conductive pages 📖✨
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Pastimes - Find friends who do your favorite activities
Bigtent - BigTent is a web-based organization and communication portal for groups.