Epic Pen - A windows tool for drawing over your desktop and applications

MWSnap - MWSnap is basically a free to use Windows snapping tools that are used for snapping any part of the screen that is currently displaying on the front of all opened programs and windows.

gInk - An on-screen on-screen annotation software for Windows.

Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.

ZoomIt - Presentation utility for zooming and drawing on the screen.

FastStone Capture - A powerful, lightweight, yet full-featured screen capture tool that allows you to easily capture...