Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.

Scribblar - Scribblar is a free online collaboration tool that is perfect for online tutoring.

Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

Twiddla - Mark up websites, graphics, and photos, or start brainstorming on a blank canvas.

Facebook Messenger - Facebook Messenger is a faster way to message.

NoteBookCast - A real time shared whiteboard in your browser, teach, explain, sketch. For work, study, fun.