I haven’t tried Jing or Screencast-o-matic or Camtasia or Lightshot – but I do know that there are several great open source products out there that do screen captures . At my workplace we have a license for Adobe Captivate, so this is the software we use to produce tutorials such as the ones you can see on our ACU Library YouTube channel.
It’s great to be able to know about freely available alternatives as these are great options.
I love podcasts – and subscribe to quite a lot of podcasts that I listen to on an (almost) daily basis. I have created a podcast previously using Audacity and found it quite god to use.