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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. >

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!

The Google Mashup Editor Create mashups using our simple online editor. The Google Mashup Editor provides simple tools and features that allow you to create mashups in minutes.

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