You have probably heard about Internet-based communication tools like Skype, Google+, or iChat. Each of these applications offers 1-to-1 or 1-to-many audio/video chat capabilities, and the ability to screenshare (showing your computer screen as the video feed to other participants).
But Join.me seems to have taken it a step further in its simplicity. Instead of downloading an application or plugin, all you need is an email address. This is great tool for maintaining a teaching presence with your students without having to provide extensive documentation on using Skype to new users. There is nothing for users to install, and there are are only a handful of onscreen buttons to use for controlling what happens.
Here’s what the free version of Join.me can do:
Here is their demo video that gives you a good sense of what it does for the free version, and for the pro upgrade.