| http://www.w3.org/ns/prov#value | - A company will buy data mostly for statistical purposes indirectly contacting their target clients (like a public account in facebook, a mail to a public ID) such that the person is not concerned with questions like How did he get my phone number and my personal non-public email ID and address?. but when the company behind gtalk is all about the information, I will take my chances with the one fro
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