Russell Stannard has posted a range of online animated guides that demonstrate various ways in which you can incorporate learning technologies into teaching.
These videos were created for teachers to help them to incorporate technology into their teaching. My own background is in teaching English, so some of the sites are specific to ELT and are grouped separately. The rest are for all teachers and there is also a section for those interested in more difficult multimedia products like Flash and Director.
The cover how to use iTunes, PowerPoint tips, creating blogs and many other things.
He has used Camtasia to produce the video guides. Personally I am a fan of Captivate which does a similar job, for those looking for a free tool, Wink is certainly one option which does work quite well.
Well worth a look.