Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Communifire - Enterprise Social Collaboration Software
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
DigitalChalk - Online Training Software and Learning Management System (LMS)
LightShot - The fastest way to take a customizable screenshot.
Workplace by Facebook - Connect everyone in your company and turn ideas into action.