Dozuki - Dozuki is a web-based tool for creating and distributing step-by-step documentation.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
DocGen - Static website generator
Shutter - Shutter is a feature-rich screenshot program.
openSourceCM - Web-based legal document processing and contract management
Snipping Tool - Use Snipping Tool to capture a screen shot, or snip, of any object on your screen, and then annotate, save, or share the image