Women on Top

Starting out with just a game-changing idea, a bulletproof business plan, or an electrifying design, these women are reinventing their industries and demolishing boys' clubs from the ranks of the military to Silicon Valley. They're all under 40, but those aren't stars in their eyes: They're planning a revolution.


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    Top Tech Expert

    Rhiannon Bell, 33, creative director, Zynga

    Résumé: A user-experience guru at Zynga, the company behind Farmville, Bell works on ways to support games and keep users addicted. Her most recent debut, RewardVille, already has more than 7 million active players, according to appdata.com.

    Background Check: "Growing up in a tiny town in Wales, the Internet was my connection to the world. At 16, I taught myself HTML, Javascript, and design."

    Big Break: "In March 2009, I was living in San Francisco when I lost my job — and my visa. I bought a one-way ticket back to London. The day of my going-away party, a friend suggested I call Zynga. I joined as an art director. Now I lead a team of 16 in the Design and User Experience Studio."

    Game Girl: "I collect vintage consoles and throw retro game nights for friends."

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