It's estimated that 2.3 billion people use social networks worldwide. Facebook still dominates the social landscape, adding 500,000 new users every day - that's six new profiles every second. However, there's growing concern amongst users.
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Một thiếu nữ đang dùng Face Book Source: Suplied by Google
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By Maria Schaller, Tuyết Lê
Source: SBS
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