Ink2Go - Ink2Go is an extremely simple yet powerful screen annotation and recording software.
ZoomIt - Presentation utility for zooming and drawing on the screen.
oCam - oCam is very simple and easy "Screen Recorder" and "Screen Capture".
Virtual Magnifying Glass - Virtual Magnifying Glass, a free, open source, screen magnification program for Windows, Linux, FreeBSD and Mac OS X. Free full version download and instructions for use.
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Epic Pen - A windows tool for drawing over your desktop and applications