Tech news from around the web:

• Facebook has booked $1.86bn in worldwide advertising revenue for 2010 – an 86 per cent  increase over the estimated 2009 advertising revenue of $740m, according to Advertising Age. The majority of these bookings come from outside the US and from small and medium-sized companies.
• Gizmodo claims it has a basic sketch of the next-generation iPad. New features include cameras on the front and back of the tablet, which points to a FaceTime facility; a high-resolution Retina display; and a slot for SD memory cards.

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