BUSINESS
03/18/2010 05:12 am ET Updated May 25, 2011

The Most Powerful Women You May Not Know of

Oprah Winfrey, the Queen of England, Michelle Obama. We know who they are... or at least you should!

But here are a handful of women--also extraordinary and powerful--who may have escaped your notice until now. They are leaders in their fields and exercise major influence over the world around you.

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