The mainstream is always under attack.

Personal computing today is a rich ecosystem encompassing massive PC-based data centers, notebook and Tablet PCs, handheld devices, and smart cell phones. It has expanded from the desktop and the data center to wherever people need it - at their desks, in a meeting, on the road or even in the air.

Students deserve great teachers. And teachers deserve the support they need to become great.

Finding information is either a software question or a question of how much information is online.

The next time someone tells you we can trim the budget by cutting aid, I hope you will ask whether it will come at the cost of more people dying.

That it's a worldwide thing that families are better off.

Kenya’s M-Pesa proves that when people are empowered, they will use digital tech to innovate on their own behalf.