The Creative Commons is a nonprofit group which allows you to obtain licenses which protect your own original work.
Castpost – Free hosting for audio and video clips
Podbean – Free podcast hosting and publishing.
Pickstation – Good to use for podcasts and music.
Blubrry– Find, share and organize podcasts.
Evoca– With this site you can create audio files from your computer, phone or Skype. Share/embed them on websites.
MyPodcast – Podcast hosting site
HeyCast– A tool to create video podcasts. Allows RSS feeds