For example, the usage of virtual currencies, online bartering marketplaces, and time banking brokers that match skills to needs and allow prices to be set mutually and in non-monetary units.

FORBES: Is Your Job Robot-Proof?

Such heavy-duty vehicles account for 17% of all petroleum usage in the US. An example: a heavy duty 18-wheeler might travel 60, 000 miles per year and get 5 mpg (using 12, 000 gallons of diesel fuel).

FORBES: The Most Important Energy Developments Of 2012

Vleugel gives a good example of mass-market usage.

FORBES: Legacy's Media Offspring And Heir: Citizen Journalism

In India, for example, nearly 50% of consumer Internet usage is accessed through mobile phones.

FORBES: Facebook: Mobile Growth Takes Off in Emerging Markets

For example, there are industry standards for measuring energy usage in TVs and cable set-top boxes.

FORBES: Six Ways to Create Economic Growth

For example, Southwest Airlines hedged as much as 85% of its annual fuel usage over the past six years.

FORBES: Magazine Article

The software can, for example, assign a customised scoring algorithm to each credit card, depending on its normal usage patterns.

ECONOMIST: Computing

This could happen in one of two ways: it is possible for example that it really will just be those high prices that force everyone to economise on energy usage.

FORBES: Green Energy Economics in Action