We have been asked a few times how we make our tutorial videos, we all use a variety of different tools. Here a few:
Snagit is a computer application that records pictures and videos from your desktop that you can save and upload to the web via the screencast service or YouTube. Education pricing can be found here http://shop.techsmith.com/store/techsmit/en_GB/list/categoryID.33182800/
We also use jing, it's a very light free application made by the same people as Snagit so it's basically a stripped down version of the above. http://www.techsmith.com/jing.html
If we are creating videos that require lots of editing, text, different clips etc we use a Mac only programme called Screenflow - http://www.telestream.net/screenflow/ it's £69.99 in the mac app store. Screenflow is very powerful and worth every penny if you want to produce high quality videos.
For a completely free web based application with single sign on from your Google Apps account use Screenr http://www.screenr.com/ It requires a java download that your network team may need to enable for you.
Finally? Have you heard of Google Hangouts? It's the Google video conferencing application powered by Google+ you can read this post to find out more. Hangouts on Air stream direct to YouTube, you can also screenshare documents and your desktop in the hangouts.
Flipped lessons? Tutorials for new technology? Screencasting rocks!