Web pages.

A browser is a program that locates a web page by its address and lets users access the content. There is a lot of information on the Internet, and for that reason, have been designed a variety of search engines. A search engine is a web page with a database of information about other web pages and their content. Rich Site Summary (RSS) is a subscription service that provides users with frequent updates from media websites, blogs and other sources of information. In this way, people can keep up with current issues that interest them. RSS technoly automatically sends you information about subjects that interest you so that you don't have to look for this information online. People can suscribe in two ways:
  Directly from the web pàge, by clicking on a 'suscribe' icon.
  Through a news aggregator program (online or downloadable), such as Old Reader, RSS Reader or Netvibes. More modern programs, such as Feedly, can be downloaded to smartphones with Android or iOS operating systems.