Below is some links to Podcasts and tutorials that I have produced or helped to produce:

Quiz Solutions: http://www.uwlax.edu/mathematics/Math175/Links/podcasts.htm

Some data relating to the above Podcasts: http://www.uwlax.edu/mathematics/Math175/assets/Podcast/reports/reports.htm

How-To make a podcast: http://www.uwlax.edu/mathematics/Math175/assets/how-to1/how-to3/how-to3.html

The Learning Objects in the PRAXIS project: http://www.uwlax.edu/mathematics/PRAXIS/LOs/Prelim_Results.htm (the "Chalk-Talk" tab of each learning object is a student-generated podcast)

Communicating an idea with a colleague (Mark) http://www.uwlax.edu/iiurl/mark/mark/mark.html

Showing a student How-To work with software: http://www.uwlax.edu/iiurl/springLOs/Hot-To-podcasts/How-to-1/How-to-1.html

A Tutorial about how to download software: (high quality) http://www.praxiswi.com/_CamtasiaTutorials/LO/tutorial1/tutorial1.html