Earlier this week Government advisors said shale gas wasn't a "game-changer" as it could only meet a relatively small share of gas demand.

BBC: Viewpoints: Fracking's risks and benefits

If we're "only" talking about a bumpy, anaemic recovery, not a double-dip - and we don't see a game-changer for the global economy in the next few months, like a US default or a meltdown for the euro - these kinds of measures to support the economy look more likely at this stage than another dose of quantitative easing.

BBC: UK growth - anything to be done?

Bill would tell you the arts are important, but he doesn't see the arts as a game changer in public education.

FORBES: Legal Adversary Turned Ally

If leather seats come only with a package that includes a six-disc CD changer, the customer won't be able to unbundle the options and pick only what he wants.

FORBES: Just in Time Meets Just Right

"John McCain needed a game-changer tonight, and by any measure, he didn't get it, " he said. iReport.com: Who do you think won the debate?

CNN: McCain, Obama fight for title of 'most qualified'

Martin McGuinness might still be too far off the lead to stand a chance of succeeding Mary McAleese, but if Sean Gallagher doesn't secure victory this final bad tempered exchange could be remembered as a game changer.

BBC: No charity from McGuinness in Gallagher donation row

"I'd say before Friday that idea of a plus-one didn't have much traction, but I think the announcement on Friday's a game-changer, " Scott said.

WSJ: College Football BCS: The Plus-One Format Is Back on the Table