Final answer:
The organization founded by feminists like Betty Friedan in 1966 is the National Organization for Women (NOW), which aimed to enhance women's rights and participation in American life, inspired by Friedan's work 'The Feminine Mystique'.
Step-by-step explanation:
In 1966, the organization founded by feminists, most notably Betty Friedan, was the National Organization for Women (NOW). NOW became a cornerstone for the resurgent women's movement, with its agenda to make possible women's participation in all aspects of American life and to secure for women all the rights that men enjoyed. The formation of NOW was in part a response to the gender equality provisions of the 1964 Civil Rights Act. Betty Friedan’s groundbreaking book, The Feminine Mystique, played a pivotal role in raising awareness about the dissatisfaction many women felt with being relegated to domestic roles, and helped articulate the aims of the feminist movement that NOW would champion. Friedan served as the first president of NOW, a role which she used to guide the organization's actions towards the enactment of the Equal Rights Amendment and to combat gender discrimination in a variety of fields.