But even readers who love Facebook, or at least cannot imagine life without it, should see its stock market failure as a sign of the commercial limits of the Internet.

FORBES: What the Facebook IPO Debacle Doesn't Tell Us

Until five years ago Japan's commercial paper market was off limits to nonbank financial companies.

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But the project was held back by the city authorities' reluctance to allow residential accommodation and by strict limits placed on commercial space.

ECONOMIST: Urban regeneration

Although they are allowed no more than 4% of a big commercial bank, there are no limits on other financial firms.

ECONOMIST: South Korean finance

There are already, after all, limits on how much commercial paper and other forms of debt fund-management firms can buy from other members of their group.

ECONOMIST: South Korean finance

Long distance lorry drivers and other commercial drivers could also have problems meeting limits on their hours of work if trips were extended, officers said.

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Two groups were advised to follow a Mediterranean diet, which also encourages wine with meals and limits red meat, soft drinks and commercial baked goods.

WSJ: Mediterranean Diet of Olive Oil, Nuts, Reduces Heart Disease, Study Finds

The project must be completed by March 2014, because of time limits placed on the Department for Transport's Stations Commercial Project Facility fund.

BBC: Banbury Station multi-storey car park approved