News aggregator
In computing, a news aggregator, also termed a feed aggregator, content aggregator, feed reader, news reader, or simply an aggregator, is client software or a web application that aggregates digital content such as online newspapers, blogs, podcasts, and video blogs in one location for easy viewing. The updates distributed may include journal tables of contents, podcasts, videos, and news items.
Contemporary news aggregators include MSN, Yahoo! News, Feedly, Inoreader, and Mozilla Thunderbird.
Function
Aggregation technology often consolidates web content into one page that can show only the new or updated information from many sites. Aggregators reduce the time and effort needed to regularly check websites for updates, creating a unique information space or personal newspaper. Once subscribed to a feed, an aggregator is able to check for new content at user-determined intervals and retrieve the update. The content is sometimes described as being pulled to the subscriber, as opposed to pushed with email or IM. Unlike recipients of some push information, the aggregator user can easily unsubscribe from a feed. The feeds are often in the RSS or Atom formats which use Extensible Markup Language to structure pieces of information to be aggregated in a feed reader that displays the information in a user-friendly interface. Before subscribing to a feed, users have to install either "feed reader" or "news aggregator" applications in order to read it. The aggregator provides a consolidated view of the content in one browser display or desktop application. "Desktop applications offer the advantages of a potentially richer user interface and of being able to provide some content even when the computer is not connected to the Internet. Web-based feed readers offer the great convenience of allowing users to access up-to-date feeds from any Internet-connected computer." Although some applications will have an automated process to subscribe to a news feed, the basic way to subscribe is by simply clicking on the web feed icon and/or text link. Aggregation features are frequently built into web portal sites, in the web browsers themselves, in email applications, or in application software designed specifically for reading feeds. Aggregators with podcasting capabilities can automatically download media files, such as MP3 recordings. In some cases, these can be automatically loaded onto portable media players when they are connected to the end-users computer. By 2011, so-called RSS narrators appeared, which aggregated text-only news feeds, and converted them into audio recordings for offline listening. The syndicated contents an aggregator will retrieve and interpret is usually supplied in the form of RSS or other XML-formatted data, such as RDF/XML or Atom.History
RSS began in 1999 when it was first introduced by web browser pioneer Netscape. In the beginning, RSS was not a user-friendly gadget and it took some years to spread. "...RDF-based data model that people inside Netscape felt was too complicated for end users." The rise of RSS began in the early 2000s when the New York Times implemented RSS: "One of the first, most popular sites that offered users the option to subscribe to RSS feeds was the New York Times, and the company's implementation of the format was revered as the 'tipping point' that cemented RSS's position as a de facto standard." "In 2005, major players in the web browser market started integrating the technology directly into their products, including Microsoft's Internet Explorer, Mozilla's Firefox and Apple's Safari." according to BuiltWith.com, there were 20,516,036 live websites using RSS.Types
Web aggregators gather material from a variety of sources for display in one location. They may additionally process the information after retrieval for individual clients. For instance, Google News gathers and publishes material independent of customers' needs while Awasu is created as an individual RSS tool to control and collect information according to clients' criteria. There are a variety of software applications and components available to collect, format, translate, and republish XML feeds, a demonstration of presentation-independent data.News aggregation websites
A news aggregator provides and updates information from different sources in a systematized way. "Some news aggregator services also provide update services, whereby a user is regularly updated with the latest news on a chosen topic". Websites such as Google News, Yahoo News, Bing News, and NewsNow where aggregation is entirely automatic, using algorithms which carry out contextual analysis and group similar stories together. Websites such as Drudge Report and HuffPost supplement aggregated news headline RSS feeds from a number of reputable mainstream and alternative news outlets, while including their own articles in a separate section of the website.News aggregation websites began with content selected and entered by humans, while automated selection algorithms were eventually developed to fill the content from a range of either automatically selected or manually added sources. Google News launched in 2002 using automated story selection, but humans could add sources to its search engine, while the older Yahoo News, as of 2005, used a combination of automated news crawlers and human editors.
Web-based feed readers
Web-based feeds readers allow users to find a web feed on the internet and add it to their feed reader. These are meant for personal use and are hosted on remote servers. Because the application is available via the web, it can be accessed anywhere by a user with an internet connection. There are even more specified web-based RSS readers.More advanced methods of aggregating feeds are provided via Ajax coding techniques and XML components called web widgets. Ranging from full-fledged applications to small fragments of source code that can be integrated into larger programs, they allow users to aggregate OPML files, email services, documents, or feeds into one interface. Many customizable homepage and portal implementations provide such functionality.
In addition to aggregator services mainly for individual use, there are web applications that can be used to aggregate several blogs into one. One such variety—called planet sites—are used by online communities to aggregate community blogs in a centralized location. They are named after the Planet aggregator, a server application designed for this purpose.
Feed reader applications
Feed aggregation applications are installed on a PC, smartphone or tablet computer and designed to collect news and interest feed subscriptions and group them together using a user-friendly interface. The graphical user interface of such applications often closely resembles that of popular e-mail clients, using a three-panel composition in which subscriptions are grouped in a frame on the left, and individual entries are browsed, selected, and read in frames on the right.Software aggregators can also take the form of news tickers which scroll feeds like ticker tape, alerters that display updates in windows as they are refreshed, web browser macro tools or as smaller components, which can integrate feeds into the operating system or software applications such as a web browser.