Susan Wojcicki

My first job after college was at Magic Quest, an educational software startup company where I was responsible for writing the content. I found that job somewhat accidentally but after working there a few weeks and loving my job, I decided to pursue a career in technology.

Even though it was a start-up with fewer than 20 people, and I was pregnant with my first child, the best decision I've ever made was to join Google in 1999. Worst decision? Deciding to get a puppy and a bunny right when the baby came.

Hammer down product fundamentals first. Make sure you've got something that works before doubling down on promotion and marketing. Create a groundswell of organic support, and only then leverage PR and advertising to spread the word.

I usually feel like the role comes to you to sort of illuminate some piece of where you are in your life. I feel like I myself am a single woman and I'm childless - by choice - at this point, and I don't know what will happen.

Every time you log in to Facebook, every time you click on your News Feed, every time you Like a photo, every time you send anything via Messenger, you add another data point to the galaxy they already have regarding you and your behavior.