What are RSS Feeds?
Rich Site Summary (RSS) or Really Simple Syndication is a lightweight XML vocabulary for describing websites and distributing news headlines and other content on the Web. Think of it as a distributable “What’s New” for your site. RSS is a method to syndicate your site content. This is done by creating an XML document which summarizes specific site content such as news, blog posts or comments and forum threads.
Web feeds provide web content or summaries of web content together with links to the full versions of the content, and other metadata. RSS, in particular, delivers this information as an XML file called an RSS feed, webfeed, RSS stream, or RSS channel. In addition to facilitating syndication, web feeds allow a website’s frequent readers to track updates on the site using an aggregator.
An aggregator or news aggregator is a type of software that retrieves syndicated Web content that is supplied in the form of a web feed (RSS, Atom and other XML formats), and that are published by weblogs, podcasts, vlogs, and mainstream mass media websites.
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.
