John Edwards in particular is betting on union support energising his perpetually third-place campaign.

ECONOMIST: But still worth courting

John McCain had a problem with energising the Republican base, hence his choice of Mrs Palin.

ECONOMIST: The London Stock Exchange

Dan Pearson, deputy European editor for GamesIndustry.biz, said the idea was a shrewd method of re-energising the firm's strong back catalogue.

BBC: Technology

Introduce a third seller, however, and the stifling equilibrium is broken as a series of market-energising relocations and pricing changes kick in.

ECONOMIST: Modelling behaviour

He was addressing the enterprise committee on the Energising Northern Ireland report.

BBC: Enterprise Committee

The debate is energising activists on both the left and the right.

ECONOMIST: Taking on the public-sector unions

This energising read will spark a desire to head for the hills.

ECONOMIST: Forget the pavement and head for the hills

But in 2009 the ESA reversed its position saying it wanted to let publishers make their booths "active, captivating and energising" after complaints that this and other changes had made the event feel "soulless".

BBC: CES 'booth babe' guidelines revised but ban rejected