Tinder - Tinder is how people meet. It's like real life, but better.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Feeld - Meet kinky, curious and openminded humans.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Badoo - Badoo combines elements of dating apps and social media platforms to create a unique way of meeting potential romantic interests.
Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.