Editor's Note: Entrepreneurs and Defining an Era The vision and actions of entrepreneurs are changing the world. And you're a part of it.

One of the great and transformative things about being an entrepreneur is that you define a moment, an age or sometimes an epoch. Over the last five years, entrepreneurs have launched ideas and philosophies that have changed the way we approach everything from politics to economics to business strategy.

The vision and grassroots efforts of entrepreneurs like you are changing the way we think and behave as a society--not only in the context of commerce, but, perhaps more important, within the context of communities.

How we define a generation is no longer in the hands of corporations and unions. We are shaping this country. And your impact as an entrepreneur goes far beyond Angry Birds, iPads and social media. Thanks to you, the days in which a corporation boldly slapped its logo on an entire population are long gone. Pepsi Generation? I think not. We have become a society defined by our own identities and like-mindedness.