Information AboutNews Aggregator |
| CATEGORIES ABOUT AGGREGATOR | |
| news aggregators | |
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WHAT DO AGGREGATORS DO? Aggregators reduce the time and effort needed to regularly check websites of interest for updates, creating a unique information space or "personal newspaper." An aggregator is able to subscribe to a feed, check for new content at user-determined intervals, and retrieve the content. The content is sometimes described as being "pulled" to the subscriber, as opposed to "pushed" with Email or IM . Unlike recipients of some "pushed" information, the aggregator user can easily unsubscribe from a feed. Aggregator features are gradually being built into portal sites such as My Yahoo! and Google , Web browsers such as Mozilla Firefox , Safari , Opera , e-mail programs like Mozilla Thunderbird , and other applications, including Apple's ITunes , which serves as a podcast aggregator. The aggregator provides a consolidated view of the content in a single browser display or desktop application. Such applications are also referred to as RSS readers, '''feed readers''', '''feed aggregators''' or '''news readers''', although in Internet communication, the last of these terms was first used for programs that read Usenet newsgroups. A website may incorporate aggregator features by republishing syndicated content on one or more of its pages. Aggregator features also may be incorporated in other client software, including Web browsers, e-mail clients, Weblog creation programs, or media player programs. Devices such as Mobile Phones or Tivo video recorders (already aggregating television programs) may incorporate XML aggregators. The syndicated content an aggregator will retrieve and interpret is usually supplied in the form of RSS or other XML -based data, such as RDF or Atom formats. CLOUDS Some news aggregators have the ability to register to ''clouds'', centralized Folksonomic services that monitor and track many syndicated content sources online. An aggregator using a cloud will receive notifications from the cloud server only when there are updates, thus eliminating the need for periodic polling. This approach attempts to produce a more efficient use of bandwidth, though the overhead associated with registering a cloud can mean no net savings. It also introduces issues of scalability and a single point of failure among others. In the time since the cloud concept was introduced in 2000 , very few sources have implemented it. AGGREGATORS CATEGORIES Online version The online version of this type of software is a website service giving aggregation services, these sites are normally provided by ISP s and internet portals. The RSS feeds allow users to just check just changed versions in comparison to previous updates. This allows 'fresh data' to be viewed only so reducing bandwidth demands on provider's hardware and users. Due to the very nature of the aggregator being online, it can be accessed anywhere by any user who is connected to the internet. Online aggregator services can be charged or be free; it wholly depends on the provider. Computer version The desktop version of this type of software is designed to satisfy the task of controlling subscriptions, supervising and RSS feeds that the user has selected. The GUI of this type of software is normally three panel composition like communication software e.g. Email Client s but browser version are available (normally run on a LAN ). Publication is made through web-servers so global access is possible. Additional facilities may be integrated into aggregators, such as audio player, blog editor, internet browser and Email Client . OEM/Meta news feeds Providers of aggregation services to news portals and search engines (not necessarily direct to end users). Usually, to integrate feeds to a HTML page a combination of Javascript/XML/AJAX techonogy is used, check www.readxml.com for a free RSS online reader. EXTERNAL LINKS
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