Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.
Epic Pen - A windows tool for drawing over your desktop and applications
Standuply - Run daily standup meetings and track your metrics in Slack
gInk - An on-screen on-screen annotation software for Windows.
MeetNotes - Increase Productivity with Meeting Notes Tool. More effective minutes, Prepare Agenda, Collaborative Notes & Action Items.
Gromit-MPX - Create annotations by directly drawing on your screen.