Here on Postcards, we’ve been sharing stories and videos of the 10 women-run start-ups that we honored in this new program, a partnership between Fortune and American Express . Small-business innovators like these women are key to economic recovery in the U.S. Fortune chose these 10 not only for their achievement so far but for their potential to expand from here. Scan down the page to read and watch more about these ground-breakers and game-changers.