News feeds allow you to see when websites have added new content. You can get the latest headlines and video in one place, as soon as its published, without having to visit the websites you have taken the feed from.

Feeds are also known as RSS. There is some discussion as to what RSS stands for, but most people plump for 'Really Simple Syndication'. In essence, the feeds themselves are just web pages, designed to be read by computers rather than people.