A web feed (or 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. Making a collection of web feeds accessible in one spot is known as aggregation, which is performed by an Internet aggregator. In computing a feed aggregator, also known as a feed reader, news reader or simply aggregator, is client software or a Web application A web feed is also sometimes referred to as a syndicated feed.
In the typical scenario of using web feeds, a content provider publishes a feed link on their site which end users can register with an aggregator program (also called a feed reader or a news reader) running on their own machines; doing this is usually as simple as dragging the link from the web browser to the aggregator. The end-user is a p concept in Software engineering, referring to an Abstraction of the group of persons who will ultimately operate a piece of software In computing a feed aggregator, also known as a feed reader, news reader or simply aggregator, is client software or a Web application A web browser is a software application which enables a user to display and interact with text images videos music games and other information typically located on a When instructed, the aggregator asks all the servers in its feed list if they have new content; if so, the aggregator either makes a note of the new content or downloads it. Aggregators can be scheduled to check for new content periodically. Web feeds are an example of pull technology, although they may appear to push content to the user. Pull technology or client pull is a style of network communication where the initial request for data originates from the client and then is responded to by the server Push technology, or server push, describes a style of Internet -based communication where the request for a given transaction originates with the publisher or central
The kinds of content delivered by a web feed are typically HTML (webpage content) or links to webpages and other kinds of digital media. HTML, an initialism of HyperText Markup Language, is the predominant Markup language for Web pages It provides a means to describe the structure Often when websites provide web feeds to notify users of content updates, they only include summaries in the web feed rather than the full content itself.
Web feeds are operated by many news websites, weblogs, schools, and podcasters. A website (alternatively web site or Web site, a back-construction from the Proper noun World Wide Web) is a collection of Web pages A blog (a contraction of the term " Web log " is a Web site, usually maintained by an individual with regular entries of commentary descriptions of A podcast is a series of audio or Video digital-media files which is distributed over the Internet by syndicated Download
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Benefits
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. In the field of computer security phishing is the Criminally Fraudulent process of attempting to acquire sensitive information such as usernames Passwords
- 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).
A "Feed Reader" is required for using Web Feeds. This tool works like an automated e-mail program, but no e-mail address is needed. The user subscribes to a particular web feed, and thereafter receives updated content, every time updating takes place. Feed Readers may be online (like a webmail account) or offline. Recently a number of mobile readers have arrived to the market. An offline web feed is downloaded to the user's system. Feed readers are used in personalized home page services like iGoogle or My Yahoo or My MSN to put content such as news, weather and stock quotes appear on the user’s personal page. Content from other sites can also be added to that personalized page, again using feeds. Organizations can use a Web Feed Server behind their firewall to distribute, manage and track the use of internal and external web feeds by users and groups. Other web-based tools are primarily dedicated to feed-reading only. One of the most popular web-based feed readers at this point is Bloglines, which is also free. Safari, Firefox, Internet Explorer 7. Safari is a Web browser developed by Apple Inc and included in Mac OS X. Windows Internet Explorer (formerly Microsoft Internet Explorer abbreviated MSIE) commonly abbreviated to IE, is a series of graphical 0, and many other web browsers allow receipts of feeds from the tool bar using Live Bookmarks, Favorites, and other techniques to integrate feed reading into a browser. Finally, there are desktop-based feed readers, e. g. FeedDemon, NetNewsWire, Outlook 2007, Thunderbird. FeedDemon is a free RSS Feed reader for Windows It was created and developed by Nick Bradbury, author of tools HomeSite, an HTML NetNewsWire is a Freeware desktop News aggregator for Mac OS X, featuring a three-paned interface similar to Apple 's Mail client Microsoft Outlook or Outlook (full name Microsoft Office Outlook since Outlook 2003 is a Personal information manager from Microsoft, and is
Scraping
Usually a web feed is made available by the same entity that created the content. Typically the feed comes from the same place as the website. However not all websites provide a feed. Sometimes third parties will read the website and create a feed for it by scraping it. Web scraping (sometimes called harvesting) generically describes any of various means to extract content from a Website over HTTP for the purpose of transforming Scraping is controversial since it distributes the content in a manner that was not chosen by the content owner.
Technical definition
A web feed is a document (often XML-based) which contains content items with web links to longer versions. A document (noun is a bounded physical representation of body of Information designed with the capacity (and usually intent to Communicate. Don't change "Extensible" News websites and blogs are common sources for web feeds, but feeds are also used to deliver structured information ranging from weather data to "top ten" lists of hit tunes to search results. News is any new information or information on Current events which is presented by print, broadcast, Internet, or Word of mouth The weather is a set of all the phenomena occurring in a given Atmosphere at a given Time. The Top Forty or Top 40 is a music industry shorthand for the currently most-popular songs in a particular genre. The two main web feed formats are RSS and Atom. RSS is a family of Web feed formats used to publish frequently updated works – such as Blog entries news headlines audio and video – in a standardized The name Atom applies to a pair of related standards The Atom Syndication Format is an XML language used for Web feeds while the Atom Publishing
"Publishing a feed" and "syndication" are two of the more common terms used to describe making available a feed for an information source, such as a blog. Web syndication is a form of syndication in which Website material is made available to multiple other sites Like syndicated print newspaper features or broadcast programs, web feed content may be shared and republished by other websites. (For that reason, one popular definition of RSS is Really Simple Syndication. RSS is a family of Web feed formats used to publish frequently updated works – such as Blog entries news headlines audio and video – in a standardized )
More often, feeds are subscribed to directly by users with aggregators or feed readers, which combine the contents of multiple web feeds for display on a single screen or series of screens. In computing a feed aggregator, also known as a feed reader, news reader or simply aggregator, is client software or a Web application Some modern web browsers incorporate aggregator features. A web browser is a software application which enables a user to display and interact with text images videos music games and other information typically located on a Depending on the aggregator, users typically subscribe to a feed by manually entering the URL of a feed or clicking a link in a web browser. Uniform Resource Locator is an URI which also specifies where the identified resource is available and the protocol for retrieving it
Web feeds are designed to be machine-readable rather than human-readable, which tends to be a source of confusion when people first encounter web feeds. The term machine-readable (or computer-readable) refers to information Encoded in a form which can be read (i Human-readable refers to a representation of information that can be naturally read by Humans In most contexts the alternative representation is Data This means that web feeds can also be used to automatically transfer information from one website to another, without any human intervention.
See also
- Atom (standard)
- RSS (file format)
- Web syndication
- feed: URI scheme
- Wikipedia:Syndication
References and external links
- Mark Pilgrim (18 December 2002). The name Atom applies to a pair of related standards The Atom Syndication Format is an XML language used for Web feeds while the Atom Publishing RSS is a family of Web feed formats used to publish frequently updated works – such as Blog entries news headlines audio and video – in a standardized Web syndication is a form of syndication in which Website material is made available to multiple other sites In Computing, the feed URI scheme (sometimes referred to somewhat imprecisely as the feed protocol; see Protocol (computing Events 218 BC - Second Punic War: Battle of the Trebia - Hannibal 's Carthaginian forces defeat those of the See also 2002 (disambiguation Year 2002 ( MMII) was a Common year starting on Tuesday of the Gregorian calendar. What is RSS?.
- Dave Shea (19 May 2004). Dave Shea is a Canadian Web designer, and Author of The Zen of CSS Design Visual Enlightenment for the Web. Events 1535 - French explorer Jacques Cartier sets sail on his second voyage to North America with three ships 110 men and "MMIV" redirects here For the Modest Mouse album see " Baron von Bullshit Rides Again " What is RSS/XML/Atom/Syndication?.
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