Using APIs and XML, mash-up authors smoosh together seemingly unrelated data sources and services in new and novel ways. Other developers are free to leverage these public feeds using application programming interfaces (APIs), published instructions on how to make programs call one another, to share data, or to perform tasks. Site owners publish the parameters of XML data feeds that a service can accept or offer (e.g., an address, price, product descriptions, images). Mash-ups are made easy by a tagging system called XML (for extensible markup language). And has tools that allow data from its customer relationship management (CRM) system to be combined with data feeds and maps from third parties. SimplyHired links job listings with Google Maps, LinkedIn listings, and salary data from. IBM linked together job feeds and Google Maps to create a job-seeker service for victims of Hurricane Katrina. combines listings with Google Maps for a map-based display for apartment hunters. Some of the best known mash-ups leverage Google’s mapping tools. Mash-ups are combinations of two or more technologies or data feeds into a single, integrated tool. has introduced a system that allows readers to classify books, and most blog posts and wiki pages allow for social tagging, oftentimes with hot topics indexed and accessible via a “tag cloud” in the page’s sidebar. The Guggenheim Museum in New York City and the San Francisco Museum of Modern Art, among other museums, are taking a folksonomic approach to their online collections, allowing user-generated categories to supplement the specialized lexicon of curators. By leveraging the collective power of the community to identify and classify content, objects on the Internet become easier to locate, and content carries a degree of recommendation and endorsement.įlickr cofounder Stewart Butterfield describes the spirit of folksonomies, saying, “The job of tags isn’t to organize all the world’s information into tidy categories, it’s to add value to the giant piles of data that are already out there” (Terdiman, 2005). With this approach, classification schemes emerge from the people most likely to understand them-the users. (The label is meant to refer to a people-powered taxonomy.) Bookmarking site, photo-sharing site Flickr (both owned by Yahoo!), and Twitter’s hash tags all make heavy use of folksonomies. Google’s FeedBurner is the largest publisher of RSS blog feeds, and offers features to distribute content via e-mail as well.įolksonomies (sometimes referred to as social tagging) are keyword-based classification systems created by user communities as they generate and review content. Most blogging platforms provide a mechanism for bloggers to automatically publish a feed when each new post becomes available. RSS readers are offered by third-party Web sites such as Google and Yahoo! and they have been incorporated into all popular browsers and most e-mail programs. Some even distribute corporate reports via RSS. Many firms use RSS feeds as a way to mange information overload, opting to distribute content via feed rather than e-mail. Subscribing is often as easy as clicking on the RSS icon appearing on the home page of a Web site of interest. Viewing an article of interest is as easy as clicking the title you like. Subscribe to the New York Times Technology news feed, for example, and you will regularly receive headlines of tech news from the Times. The title or headline of any new content will then show up in an RSS reader. Users begin by subscribing to an RSS feed for a Web site, blog, podcast, or other data source. RSS (an acronym that stands for both “really simple syndication” and “rich site summary”) enables busy users to scan the headlines of newly available content and click on an item’s title to view items of interest, thus sparing them from having to continually visit sites to find out what’s new.
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