One of the foremost underestimated elements of web design (which few people give much thought to) is that the notion of metadata. Essentially the concept behind the topic is to supply materials that describe the information’s content (data about data). Within the constructs of the online a number of the foremost documented uses for metadata are Meta tags RDF data and purpose-built microformats. By including metadata in your documents you'll not only describe your pages in such how that they will be better indexed by web spiders (like how libraries have indexes to seek out the book you’re looking for) but you'll also markup the knowledge on a page during a way that provides them added meaning and utility. An example of are often '> this is often how a vCard can be coded for browsers apps (such as an email client) and services that are set to acknowledge the convention.
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