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

CoSketch - CoSketch is a multi-user online whiteboard designed to give you the ability to quickly visualize and share your ideas as images. No registration or plugins required.

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

Coccinella - Coccinella is a free and open-source cross-platform instant messaging client with a built-in...

Digsby - Tagged makes it easy to meet and socialize with new people through games, shared interests, friend suggestions, browsing profiles, and much more.

Conceptboard - Instant Whiteboards for Teams & Projects