In 2006, Williams became a founder of the Nobel Women's Initiative along with Nobel Peace Laureates Mairead Corrigan Maguire, Shirin Ebadi, Wangari Maathai, Jody Williams and Rigoberta Menchú Tum. These six women, representing North and South America, the Middle East, Europe and Africa, brought together their experiences in a united effort for peace with justice and equality. It is the goal of the Nobel Women's Initiative to help strengthen work being done in support of women's rights around the world. Williams was also a member of PeaceJam.