Slack - A messaging app for teams who see through the Earth!
Smoothboard Air - Smoothboard Air is a collaborative interactive whiteboard application for iPads and Android devices that revolutionizes interaction in lecture rooms.
Groupboard - Free collaborative online whiteboard, web conferencing and online tutoring software that can be embedded in your own website. Used by many online tutors, schools and universities.
NittiTre WhiteBoard - NittiTre WhiteBoard is an easy-to-use software that places a semi-transparent whiteboard on the display to give you the probability to draw instantly on the computer.
Witeboard - A real-time whiteboard for your team. No signups required.
MimioStudio - With the new MimioStudio interactive whiteboard software, teachers have bigger flexibility and extra options for supplying amazing studying that helps the Common Core State System(CCSS).