Well, I'm nearly there - on Day 29 of the Comment Challenge. Today's task looks a bit like hard work; I have to come up with a commenting guide for students, except I have changed it to blogging or Internet newbies.
Playing with VoiceThread
I have taken up Michele Martin's suggestion and made this small commentary using VoiceThread which is a wonderful tool for putting audio to slides and making a 'short and sweet' slideshow. It is relatively easy to use once you have watched the 'how to' instructions.
However, if you're wanting to making a longer slideshow with audio, you are probably better to use Slideshare. Having said that, VoiceThread has a much better facility for interaction than Slideshare, and is much more fun.