Twiddla!

Join.me is a quick, remote controlling / screen & file sharing program from the makers of LogMeIn.

Google Drawings, part of Google Drive , allows users to collaborate creating, sharing, and editing images or drawings. It can be used for creating charts, diagrams, designs, flow-charts, etc. It contains a subset of the features in Google Drive - Slides but with different templates. Its features include laying out drawings precisely with alignment guides, snap to grid, auto distribution, and inserting drawings into other Google documents, spreadsheets, or presentations. »

Ekiga (formely known as GnomeMeeting) is an open source VoIP and video conferencing application for GNOME. Ekiga uses both the H.323 and SIP protocols. It supports many audio and video codecs, and is interoperable with other SIP compliant software and also with Microsoft NetMeeting.

With ooVoo you can make free, high-quality video calls, voice calls, and send text messages to easily connect with your friends and family. Make clear and crisp video calls with up to 12 people at a time, on any device. Try it now!

RealtimeBoard is the simplest and versatile visual collaboration tool for teams that work in a digital environment. RealtimeBoard is perfect for remote collaboration, brainstorming, visual planning, organizing thoughts, gathering feedback and review, creating concepts and online tutoring.

Remote Utilities is a remote PC access program for connecting to a remote PC over LAN or via the Internet. The program is used by system administrators, home users and helpdesks for remotely managing PCs in their corporate or home network, or providing customer support.

Coccinella is a free and open-source cross-platform instant messaging client with a built-in whiteboard for improved collaboration with other people.

Deekit is a whiteboard for remote teams to share ideas, brainstorm together, discuss complex problems, product and business planning. An unlimited canvas for you and your team to draw, write, edit and work with other content. Together, in real time.Deekit is available on all your devices - desktop, tablets or why not mobile when you’re on the go. Want more space - why not the TV or project it on a wall?

BigBlueButton enables universities and colleges to deliver a high-quality learning experience to remote students.

Reliable, easy, effective web conferencing and online meetings.

Openmeetings provides video conferencing, instant messaging, white board, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming.

A Web Whiteboard is touch-friendly online whiteboard app that lets you use your computer, tablet or smartphone to easily draw sketches, collaborate with others and share them with the world.

Webex: The leader in online meetings, desktop sharing, web conferencing, video conference, net meeting, web conference. Get a free 14-day trial of WebEx online meetings, the leading web conferencing and video conference solution for sales presentations, webinars, online training, remote support.

Extremely low bandwidth video collaboration software that supports application sharing, desktop sharing, file sharing, and PTZ camera control. Also, this client is free without support for commercial, personal, and government use.

Screen share instantly for free using Screenleap. Screenleap makes it really easy to share your computer screen. You can share your screen with as many people as you like with no downloads, account setup, or cost required. Friends, family, and colleagues can view your computer from their laptops, desktops, or mobile devices without having to install anything.