- Create a powerpoint presentation
- Record a commentary to go with it - I recorded mine in Powerpoint 2007, but this was a bit of a pain, and I ended up having to edit the commentary using the WavePad Sound Editor (a great free download), so will record it separately next time
- Upload the presentation to SlideShare
- Upload the audio to a file store (I used Internet Archive)
- Use SlideShare's slidecast tools to link the audio to the slides
(NB that this presentation is now available for others to use under a Creative Commons Share Alike licence)