Zapsnap - Temporary peer to peer screenshot sharing in your browser
Epic Pen - A windows tool for drawing over your desktop and applications
Fire Files - Fire Files is the industry's leading investigation software for the case management of police, fire, arson, and bomb investigations.
gInk - An on-screen on-screen annotation software for Windows.
Mark And Scribble - Fortify your presentation skill by Mark And Scribble.
Gromit-MPX - Create annotations by directly drawing on your screen.