Driving up the value of the advertising is a big commitment for Microsoft.

Ad campaigns are necessary for competition. But good PR educates people; that's all it is.

Marketing is about values. It's a complicated and noisy world, and we're not going to get a chance to get people to remember much about us. No company is. So we have to be really clear about what we want them to know about us.

Internet TV and the move to the digital approach is quite revolutionary. TV has historically has been a broadcast medium with everybody picking from a very finite number of channels.

We make the future sustainable when we invest in the poor, not when we insist on their suffering.

Innovations that are guided by smallholder farmers, adapted to local circumstances, and sustainable for the economy and environment will be necessary to ensure food security in the future.