A podcast is a web-based series of audio or video content. Episodes are released chronologically and may be seen or heard in a podcatcher* or on a website. Think of it like web-based television or radio: if your favorite radio show were web-based, it would be a podcast. One advantage that web-based podcasts have over their TV or radio counterparts is the ability to archive. Podcasts are typically archived for weeks, sometimes months, sometimes years. Another advantage is the episode show notes**. The internet is great at blending mediums – text, audio and video.