Who says no one cares about punctuation anymore? When indie rock band Vampire Weekend made a recent appearance on "The Colbert Report," the host took the group to task for its song "Oxford Comma," which opens with, "Who gives a <bleep> about the Oxford comma?" Who does? Stephen Colbert, for one.The Oxford comma, also known as the serial comma, is the final comma in a series (e.g., "I'll have a ham, egg, and cheese sandwich"). It's been subject to great debate ever since the highly influential "The Elements of Style" (pro-OC) and the Associated Press Stylebook (anti-OC) first divided on the issue.Journalist Lynne Truss, author of "Eats, Shoots & Leaves: The Zero Tolerance Approach to Punctuation" went as far as to state, "A passage peppered with commas - which in the past would have indicated painstaking and authoritative editorial attention - smacks simply of... out-of-date reference books."Ouch. Take that, Colbert.Even in an era of truncated texts and tweets, punctuation remains important to communications. But that doesn't mean the rules can't (and don't) change. A moment of silence for the Oxford comma...