RSS ( Really Simple Syndication or Rich Site Summary ), is an XML data structuring format that facilitates automated access to the information contained in a web site. Internet. This way of distributing content is called syndication. Its function is to show a summary or index with the contents that have been published on a site, without even having to enter it. With the use of an RSS reader (programs that allow you to read RSS feeds, feed readers ) or a browser that incorporates it, you will be able to obtain news from one or several sites in an agile and comfortable way. without having to visit them.

A feed is a file that contains the data that you want to share through an RSS feed. They usually have an .rss , .rdf or .xml extension.

It is a small text file in XML format, hosted on the site's server that acts as a source of content. Within this file, the editors of the site place, in an orderly and structured way, the headlines and a short description of the content that they have published or that they consider to be of interest. In the more advanced versions, they can be accompanied by images or attached documents. By adding the sources of your favorite sites to a program designed to read them (RSS reader), you can stay informed of the news without having to make constant visits.

An RSS channel is the link (through which data circulates) between our team and the site server that we use as a source of content. Often used as a synonym for feed ) of RSS.

You can consult more information about this format in http://es.wikipedia.org/wiki/RSS