Simon Cowell (@simoncowell) has officially (and finally) joined Twitter, and has taken to the network with some gusto, using his new profile to taunt fellow The X Factor USA judges L.A. Reid, Paula Abdul and Nicole Scherzinger.

But it’s his barbed exchanges with former Britain’s Got Talent co-judge Piers Morgan that have brought the most attention, with the two ribbing each other’s respective popularity, and now bookmakers have made Cowell the overwhelming favorite to trump Morgan in Twitter followers by the end of 2011.

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When it comes to understanding the advantages of being proactive and knowledgeable about social media, is it a cause for concern that broadcaster Piers Morgan ‘gets it’ more than screenwriters Aaron Sorkin and David Simon, respectively creators of The West Wing and The Wire, two of the most celebrated and influential shows in modern television history?

And does it also matter that Sorkin, who penned the critically-acclaimed Mark Zuckerberg biopic The Social Network, has not only now quit Facebook, but by his own admittance didn’t know anything about social media when he started writing the film?

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