Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Frysbe - Frysbe: Make global friends at random and the fling app comes up with features to send messages to strangers from every corner of the world to expand your social circle.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Yochat - Yochat app enables users to get to know about strangers from a large number of countries from around the world by video chatting with them.
Bylde - Bylde is a SaaS platform you can use to Start, Manage and Grow your groups and communities.
PenPal World - Connect with people all over the world