News roundup: Citibank turns rewards into ‘social currency’ … Media mogul Rupert Murdock embraces Twitter … U.S. stocks leap on first trading day of new year

    Insider

    Funny money: Credit card rewards are the new social currency. Citibank customers can now use Facebook to pool their rewards points online. The bank is today launching a Facebook application that lets …


    Already a subscriber? .

    We are glad you enjoy reading Business Report.

    Continue reading this story and get ACCESS to all our content from any device with a subscription now.

    • Get access to more than a decade of story archives.
    • Get access to our searchable data center of TOP LISTS.
    • Get exclusive content only available to INSIDERS.