CamStudio is able to record all screen and audio activity on your computer
and create industry-standard AVI video files and using its built-in
SWF Producer can turn those AVIs into lean, mean, bandwidth-friendly
Streaming Flash videos (SWFs)
"A Microsoft Garage project called Snip (not to be confused with the Snipping Tool) has been released. While still in the "preview" stage, it is stable and works well. It is quick and simple, and is effective for a large percentage of learning and teaching situations.
Download and install the app. The app then sits as a thin line at the top of the screen.
Tap or hover a mouse on this line and it opens to reveal a set of three tools. You can use the built in "whiteboard" (middle icon) or take a photo (icon on the right)"