The various alternatives for podcasting are thoroughly compared at:
Take your pic and start using them.

I have been using , a free recording software

To have a complete view of tips and suggestions on podcasting visit

and also some fellow wikis such as

Try this good and free software to record your voice in MP3 form and them keep it in a file that you can upload in any website, blog or wiki of yours. As you record your voice it is automatically stored in your PC!: