Using RSS Feeds and Podcasts
RSS readers
There are a large number of RSS readers (also known as feed readers or news aggregators) available to the public. Some are downloadable programs that are installed on your computer, while others are web-based services that you log in to through your web browser. Some web browsers (such as Firefox, Opera and Safari) are also capable of tracking RSS feeds.
Podcast readers
Podcast readers (also known as podcatchers or podcast aggregators) are not as plentiful as RSS readers, but there are still plenty of options.
More Information
Aggregator
Wikipedia.org provides links to a range of RSS reading alternatives
Podcast Software (Clients)
The podcast software list at the Podcasting News website is a good place to find a podcast reader that suits your needs