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Microformats: Empowering Your Markup for Web 2.0 by John Allsopp

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6 LOCATION MICROFORMATS:GEO AND ADR

Google Maps, along with Yahoo Maps, Microsoft's mapping products, and a significant number of smaller, dynamic mapping companies like Multimap and ZoomIn, coupled with increasingly inexpensive Global Positioning System (GPS) devices (now you can even get cameras that know where they are using GPS!), have all been part of the explosion of geographical and address data on the Web over the last couple of years. But standardized formats for marking up addresses or geographical locations using longitude and latitude have been missing from the equation. Each service typically has its own way of marking up data—for example, Google uses Keyhole Markup Language (KML), an XML-based format, while Yahoo uses GeoRSS, a ...

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