ZoomIt - A Hidden Secret

If you're responsible for presentations or training, and you're looking for an easy way to emphasize information, ZoomIt's on your side. You can use it to zoom your screen, make annotations by drawing and typing on the screen, and, with Windows Vista and Windows 7, you can use Live Zoom for adjustable zoom levels.

You can use freehand or controlled shape drawing in several colors and erase your markups by pressing the letter 'e'. ZoomIt also supports tablets, so you don't need an expensive touchscreen system to annotate your presentations on the fly.