"Search marketing works really well, but it takes lots of math, " says the petite, chirpy-voiced chief executive.

FORBES

"If I've got a really dark lyric, it's probably disguised in a chirpy song, " says the singer.

BBC: Dido interview: 'I am the sound of conflict'

So the new Egyptian authorities are putting national interests ahead of Islamist ones, noted a chirpy Israeli official.

ECONOMIST: Egypt and Gaza

That is partly because the launch failed, despite North Korea's claims that its satellite is beaming back chirpy revolutionary songs.

ECONOMIST: Banyan

As expected, St-Pierre used his wrestling to control the chirpy challenger, rag-dolling him at times and bullying him on the ground.

NPR: St-Pierre Manhandles Diaz At UFC 158

At Bank of America these antics are the result of mandatory "spirit training, " developed because bank brass want employees to have the chirpy demeanor of workers inDisney theme parks.

FORBES: Funny Business

Mr Lundgren's outlook is a lot less chirpy.

ECONOMIST: Norway and Sweden

China's president has reason to be chirpy.

CNN: The Game's the Thing?

No one is predicting a return to the company's heyday in the 1990s, when its blue triangle logo was everywhere and its chirpy "You've Got Mail" greeting inspired the title of a hit Tom Hanks-Meg Ryan romantic comedy.

CNN: What's the future of an independent AOL?

For those not put off by its remorselessly chirpy tone, this book contains some valuable self-help advice, not least in a discussion about luck, which, apart from the dumb kind, the authors believe is something that can be influenced.

ECONOMIST: Starting out

But Tim Ambler, who is a senior fellow at the London Business School, specialising in marketing, isn't charmed by Sid and his chirpy anti-salt pronouncements, and he goes so far as to say the advertisement won't be an effective one.

BBC: AD BREAKDOWN