In its most basic guise, podcasting is a technology that allows people to receive content from the Internet without having to download it themselves, a concept called time-shifting. You tell your computer (via a program called a "podcatcher," or less poetically, a "news aggregator") what shows you want it to collect and presto! The new stuff flows into your MP3 player while you sleep: free, noncommercial, unregulated audio. No jingles, no corporate playlists, no pesky FCC regulations