With the universal spread of portable audio players like the iPod came the advent of the “podcast,” cheap audio software similar to weblogging that spread over the Internet and became available for easy download. Podcasts are a sort of amateur radio, and a natural development in the digital revolution of 2.0 media. Audio content such as interviews about various topics can be distributed in much the same way as written material via blogs. Audio versions of radio shows or the Wall street journal for example, could be sold and transported to portable audio devices. Shows, books, etc could now be listened to whenever and wherever the listener wanted. Audible information could now be portable. Developing a better system for audio file transfer required a new RSS language, which was eventually developed. A new program was developed and synchronized with the iPod, and podcasting as a practice spread like wildfire. Audio files could be transferred directly to portable audio devices in the pockets of every American. It seemed only natural that the trend would grow, considering the massive spread of the practice of blogging before it. The term “podcast” expresses the importance of the iPod and iTunes in spreading the practice of podcasting audibly and visually. The portable aspect of the podcast, and the ability for anyone to be a podcaster are two possible reasons for the popularity of podcasting. People tend to appreciate something as easy as downloading and listening to a subscribed feed rather than searching and reading scattered Internet content. The syndicated feed allows users to keep up to date easily with a podcaster. Podcasting and video-podcasting have grown in popularity and become an essential part of the “2.0 revolution.” Podcasts allow subscribers to have whatever audio content they desire at their fingertips and in their pockets, ready to be called upon whenever the listener decides. This sort of user-control is essential to its success. 
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