Inside Economics

The latest prison currency in US jails. Not cigarettes or books of stamps...mackerel fillets in a pouch!

Engaged Tone

A Canadian company reckons it can bypass all those irritating phone menus.

Bits and Bytes

Smartphones are shaking up the mobile market, dirty tech tricks at election time, and the US military's mining networking sites.

Word of Mouth

The advertising agency that can call on an army of 400,000 people to promote people's products.

Hungry Cities

Carolyn Steel on how the challenges of producing and transporting food has shaped our urban areas.

Grub Street

We meet some of the traders and shoppers at a modern-day food market.