Semapedia is a great new project that is linking virtual world wikipedia articles to real world physical locations.
By using the cameras that are in most mobile phones nowadays users can scan in a barcode sticker, which will be posted on physical objects, and in turn, download information about that place straight to your phone's browser.
Exciting stuff! So far the technology is only working on Nokia handsets, so I couldn't actually test it on my Sony, but readers for most other phone platforms are on the way via the Kaywa Reader software, and their web site allows you to register your email address so they can tell you when version 1.1 is out.
By bringing social networks and collaborative user generated content into the physical world this begins to bridge the gap that can seem so wide at times.
See, social tagging does have a real-world use!
Howard
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