The exposition also has an early application of "virtual reality," which puts users in contact with the video images they are watching.

"They match consumer usage with willingness to pay, thus putting users in control and allowing market forces to work."

What makes MP3 appealing, however, is its absence of constraints; it puts users in charge.

Half had poor water while six per cent put users at 'high risk'.

Anyone who keeps things simple and puts users and usefulness first.

But putting users in control has external costs.

If private insurers carry the risk for drug costs, they will probably structure their plans in ways that put high users of drugs at a disadvantage.

Besides putting users at risk, the company behind a site jeopardizes its reputation if it doesn't make privacy a priority.

- Putting users first by removing barriers to services.

I therefore hope we obtain an agreement that puts users in the driving seat.