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The semantic web is an evolving extension of the World Wide Web in which web content can be expressed not only in natural language, but also in a format that can be read and used by software agents, thus permitting them to find, share and integrate information more easily.[1] It derives from W3C director Sir Tim Berners-Lee's vision of the Web as a universal medium for data, information, and knowledge exchange.

Contents [hide] 1 Purpose 2 Relationship to the Hypertext Web 2.1 Markup 2.2 Descriptive, and extensible 3 Skeptical reactions 3.1 Practical feasibility 3.2 An unrealized idea 3.3 Censorship and privacy 3.4 Doubling output formats 4 Components 4.1 XML, XML Schema, RDF, OWL, SPARQL 4.2 RDF - URI, XML, namespaces 5 Projects 5.1 FOAF 5.2 SIOC 5.3 SIMILE 5.4 Linking Open Data 6 Tools 6.1 Browsers 7 Services 7.1 Notification Services 7.2 Semantic Web Ping Service 7.3 Piggy Bank 8 See also 9 References 10 Notes 11 External links

is an evolving extension of the > World Wide Web > in which > web content > can be expressed not only in > natural language > , but also in a format that can be > read > and used by > software agents > , thus permitting them to find, share and > integrate > information more easily. > [1] > It derives from > W3C > director > Tim Berners-Lee 's vision of the Web as a universal medium for > data > , > information > , and > knowledge > exchange. >

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The Web Ontology Language (OWL) is a language for defining and instantiating Web ontologies.[1] An OWL ontology may include descriptions of classes, along with their related properties and instances. OWL is designed for use by applications that need to process the content of information instead of just presenting information to humans. It facilitates greater machine interpretability of Web content than that supported by XML, RDF, and RDF Schema (RDF-S) by providing additional vocabulary along with a formal semantics. OWL is based on earlier languages OIL and DAML+OIL, and is now a W3C recommendation.

Web design is a process of conceptualization, planning, modeling, and execution of electronic media content delivery via Internet in the form of Markup language suitable for interpretation by Web browser and display as Graphical user interface (GUI).

Share anything with a bookmarklet - Just drag this link from the Notes page up to your browser's bookmark bar and click, click, click your way to easy, no-subscription sharing in Reader. You can share any content from any web page, even if the site doesn't have a feed.

Productivity Keep track of your time with the Emergent Task Tracker, online edition Designer David Seah's previously mentioned Emergent Task Planner, which we featured as a downloadable PDF, is now available (with a few small tweaks) in a web-based Flash application called the Emergent Task Timer. The idea: type in your pressing to-dos for the day, then fill in a circle for every 15 minutes you spend on each task. At the end of the day, you can print it out to keep an eye on what you've been doing. The Emergent Task Timer will chime every 15 minutes to remind you to fill in a circle, so you've got no excuse not to keep it updated. Not only is this a terrific tool for tracking your time, but it's also a smart way to keep focused on productive endeavors. Thanks Tim!