Pages on Facebook are allowed to be anonymous. That is really important. People start revolutions; we need anonymity.

Women are not making it to the top. A hundred and ninety heads of state; nine are women. Of all the people in parliament in the world, thirteen per cent are women. In the corporate sector, women at the top - C-level jobs, board seats - tops out at fifteen, sixteen per cent.

So please ask yourself: What would I do if I weren't afraid? And then go do it.

The most important thing we're doing differently is that we talk openly about gender at Facebook.

Social media has created a historical shift from the historically powerful to the historically powerless. Now everyone has a voice.

Most people assume that women are responsible for households and child care. Most couples operate that way - not all. That fundamental assumption holds women back.

When looking for a life partner, my advice to women is date all of them: the bad boys, the cool boys, the commitment-phobic boys, the crazy boys. But do not marry them. The things that make the bad boys sexy do not make them good husbands. When it comes time to settle down, find someone who wants an equal partner. Someone who thinks women should be smart, opinionated and ambitious. Someone who values fairness and expects or, even better, wants to do his share in the home. These men exist and, trust me, over time, nothing is sexier.