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The new buzz word in Silicon Valley is "integration". Work-life "balance" is very 2.0. All these women share ways in which they integrate their family life and work. Facebook's head of Global Solutions, Carolyn Everson, for example, takes her children along on her business trips once a quarter. They meet her clients, visit new places and get a better understanding of what mom does when she isn't at home with them.

Sheryl Sandberg and Marissa Meyer have already accomplished more than most. I think the sky is the limit for them professionally. If they can inspire more women to "lean in," as Sandberg so famously describes it - to pursue a career and a family - that would be an incredible accomplishment. If they can, by their example as hands on mothers and high powered executives, show young women that they don't need to leave the workplace when they have children, they will be superheroes.

Social activism has gone mainstream. A new generation of philanthropic leaders such as Bill and Melinda Gates, and Bono are providing inspiration, guidance, and billions of dollars through their global foundations.

New forms of media - first movies, then television, talk radio and now the Internet - tend to challenge traditional codes of conduct. They flout convention, shake up the status quo and sometimes provoke outrage.

Wrestling with work-life balance is a luxury when working to support a family is a necessity rather than a choice. I think that focus is only partially a result of these tough economic times. I think it also reflects a bit of "having it all fatigue": women are worn out from feeling the pressure to excel at work, and be the perfect mom at home.

Maybe "having enough" has a second meaning beyond the basic economic security a family needs. Maybe it means accepting that a rich full life with a job and family will be rewarding, but it certainly won't be perfect. As many of us who have combined kids and careers know all too well, some days it's really pretty messy. And that's OK.