Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Whisper.sh - Whisper is the best place to express yourself online. Connect with likeminded individuals and discover the unseen world around you.
Event Hunt - Startups and Tech Events Curated By Locals
Stupid Chat - World's newest Anonymous Social Network
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Sarahah - Sarahah is a Social Networking Application for providing anonymous feedback launched in 2016 and available to use on iOS and Android platforms.