We are a consumer company and our success is directly linked to our users trusting us. Therefore we have the same incentive as the user: they want to see relevant advertising so their experience of Google is positive and we want to deliver it.

Today, most young women are exposed to technology at a very young age, with mobile phones, tablets, the Web or social media. They are much more proficient with technology than prior generations since they use it for all their school work, communication and entertainment.

Right now, offline and online are coming together because of smartphones.

At the end of the day, both men and women who become CEOs have showed tenacity and hard work to succeed in their careers. It takes not just skills but also extreme dedication and commitment. And regardless of gender, CEOs are measured by the same criteria - the growth and success of the business.

I have tried to be a leader. I have tried in my role of being one of the first women at Google, let alone the first woman to have a baby, to really try to set the tone that this is a great place to work for diversity reasons.

Things are always changing. Part of being successful here is being comfortable with not knowing what's going to happen.

The main motivations were to try to leverage Google's expertise with large computer systems and to try to give something back to science