In the third article in this series we interviewed Scott Crenshaw, vice president and general manager of the cloud business unit at Red Hat.

FORBES: Red Hat's Formula for an Open Cloud

"Customers whose companies have branch offices in Bangladesh, and run all different platforms and all different OSs, those customers will look to IBM, HP, and Compaq to provide comprehensive services, " said Paul McNamara, general manager of the business enterprise unit at Red Hat.

CNN: The big business of Linux

Since some 45 people were charged with conspiracy to murder Mr Djindjic, it has become plain that they formed part of a whole web of interests, embracing organised-crime bosses, the secret police, a now disbanded special police unit known as the Red Berets, and people suspected of war crimes.

ECONOMIST: The Balkans and the European Union

In the economic crisis that followed the quadrupling of the price of oil, the British unit sank deeply into the red while the French operation was only marginally profitable.

FORBES: The Trials Of Amory Houghton Jr.

The grey stands in contrast to the weathered red outer-coating of the Sheepbed unit, and the darker colour hints at a different oxidation state for iron (Fe) minerals that might be inside the rock.

BBC: Nasa's Curiosity Mars rover to ingest drill sample soon

His unit was caught in what Mr Ellicock describes as a Vietnam-style exchange of red and green tracer bullets.

BBC: London Marathon: Ex-paratrooper runs for record