For a football coach, there's nothing that matches the pain of a team not playing up to its capabilities.

Remember all of the 'me too' social networks built just to have a social feature Facebook and MySpace didn't have? I built one for political discussion called Essembly. It enabled unique and potentially transformative social interactions, but only 20,000 people ever used it.

I never had a desire to hurt anybody.

When all is said and done and the e-book is written about politics and the Internet, it is not going to be about the presidential election. It will be about the smaller elections in aggregate that have a huge effect on people's lives.

Causes was founded with the mission of empowering anyone to change the world. Our model is based upon the belief that everyone has the power to have an outsized impact on the world by banding together with other like-minded individuals, taking direct action, and inspiring their friends and their friends' friends to join in.

As I and the rest of my Pittsburgh Steelers teammates prepared that week in late December 1974, we knew one thing: The road to the Super Bowl in the AFC went through Oakland. To achieve your dreams as a team, you had to slay the Oakland Raiders. They were the barometer of what it took to be a championship team.

People can care about changing the world. But what gets them to act is pressure and social reward.