What is a News Feed or RSS feed?

A news feed is a data format used for providing users with frequently updated content. Content distributors syndicate a web feed, thereby allowing users to subscribe to it. A web aggregator makes a collection of news feeds available in one spot. The aggregator is often called a feed reader or news reader. Web feeds have some advantages compared to receiving frequently published content via email:

• When subscribing to a feed, users do not disclose their email address, so users are not increasing their exposure to threats associated with email: spam, viruses, phishing, and identity theft.
• If users want to stop receiving news, they do not have to send an "unsubscribe" request; users can simply remove the feed from their aggregator.
• The feed items are automatically "sorted" in the sense that each feed URL has its own sets of entries (unlike an email box, where all mails are in one big pile and email programs have to resort to complicated rules and pattern matching).
• You can provide live, up-to-date, news on your website such as the RSS feed on the right side of this page.