CANTON, MA: Dunkin' Donuts will host a live Twitter promotion on Black Friday to reward fans and mark the beginning of the holiday shopping season.

The company will give five consumers a single-cup Keurig Brewing System and a Dunkin' Donuts K-Cup Pack during the “DD Puts the ‘K' in Black Friday” Twitter contest, which will run from 6 am to 11 am on November 25. For a chance to win, consumers must tweet about how K-Cups keep them on the ...