Today is Black Friday in the States, so called because it's the day that retailers ledgers traditionally moved from red ink losses,  in to black ink profits. And this Black Friday has gone social with many retailers using the social web to promote offers and deals. Retailers including Target and Walmart, and department store groups Macy's, Kohls and J C Penney have used Facebook pages to publish the 'doorbusters' and 'early bird' deals, usually advertised in newspaper inserts on Thanksgiving, the day before Black Friday

Best Buy has over a million Facebook followers and they have been promoting deals on the social website; they have also used Twitter to promote their 'daily deals' in the shopping days leading up to Christmas.

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