Feeds, also known as RSS feeds, XML feeds, syndicated content, or web feeds, contain frequently updated content published by a website. They are usually used for news and blog websites, but are also used for distributing other types of digital content, including pictures, audio or video. Feeds can also be used to deliver audio content (usually in MP3 format) which you can listen to on your computer or MP3 player. This is referred to as podcasting.