Invest $30 and become a radio reporter

If you want to try recording interviews it is easy (and relatively cheap):
the MP3 recorder pictured here costs  less than$30 and you just have to click two buttons to make it work (and install one battery). You can also use an Ipod (eventually adding an external microphone).

Then you'll have to download the recorded files into a/your computer.

Eventually you can need an editing software. I recommend Goldwave (that can be installed for free, don't forget to install Lame MP3 as well) or Audacity. There are many others.

Once the MP3 file is on your computer you have to post it on the blog: just use the icon with the green arrow (close to the ABC spell check on the right end).

Voilà :)