| http://www.w3.org/ns/prov#value | - Most social 12 years network services are web Cell phone based and provide means for users to 13 years Telephone interact over the internet, such as e-mail 20 years TV and instant messaging. - Wikipedia 38 years Radio Source: United Nations, Web ResearchOne of the leading social networking sites: Facebook added 100 million users in less than9 months.
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