Omegle - Omegle is one of the most popular online chat website allowing user to communicate with anyone without registration.

Nifty - Manage projects, work, and communications in one place.

Chatrandom - Chatrandom provides medium to users for having chat at random with different users around the globe.

Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.

MeowChat - MeowChat is kind of instant messaging platform that offers the fun and entertaining way to the strangers across the globe to come and interact with the other strangers like them.

Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.