I have used an application called Grab to create a screenshot. It does not have the capabilities as Jing or printkey2000. Both allow characters such as lines or arrows or call outs added to a picture. It is quite cool! When I went to the jing website, I was directed to one.com. I was not sure how what to do next. Any ideas? When I went to the prinkey2000 website, I noticed that it is free for 30 days then you have to pay. Also, it is for Windows and not a MacBook. So I will continue to use Grab for my screen shots.