Published: Tue, 31 Jul 2007 10:19:49 +0100Copyright: (C) BBC 2007
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Mon, 23 Jul 2007 17:00:00 +0100The rise and rise of Facebook. But should you be worried about the possibility of your identity being stolen? There's a report on the narrowing of the gap between PCs and Macs. And the trial of a retinal implant with a light sensitive chip that might, one day, restore some vision to people suffering from retinitis pigmentosa.