Knowledge Plaza - Knowledge Plaza is a SaaS Platform dedicated to Social Knowledge Management.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Tettra - Tettra is a company wiki that helps teams manage and share organizational knowledge.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Obie.ai - Access knowledge quicker without leaving Slack
LightShot - The fastest way to take a customizable screenshot.