In 1976, the General Convention amended Canon law to give women the right to be ordained to the priesthood. The first women were ordained to the priesthood that year. (Previously, the "Philadelphia Eleven" were "illegally" ordained on July 29, 1974 in Philadelphia. These "irregular" ordinations were also reconciled at the 1976 GC.)
The first woman bishop, Barbara Harris, was consecrated on February 11, 1989. In 1994, the General Convention reaffirmed that both men and women may enter into the ordination process, but also recognized that there is value to the theological position of those who oppose women's ordination. It was not until 1997 that the GC declared that "the ordination, licensing and deployment of women are mandatory" and that dioceses that do not ordain women "shall give status reports on their implementation". This has not ended the controversy over women's ordination.
At the present time, three US dioceses do not ordain women at all. Many other churches in the Anglican communion, including the Church of England, ordain women as deacons or priests, but only a few have women serving as bishops. The election of Presiding Bishop Jefferts Schori has drawn attention to this fact; ten other primates of the Anglican communion have stated that they do not recognize Presiding Bishop Jefferts Schori as a primate. In addition, eight American dioceses have rejected her authority and have asked the Archbishop of Canterbury Rowan Williams to assign them another national leader. Link to source
Anglican Mission in America Policy (Press Release) (Full study, PDF)
Women, Ordination, and the Bible, by Rodney Whitacre, TESM
Why Godly Women Can Have A True Calling to the Ordained Ministry, An Evangelical Argument, by Peter Moore, TESM
Women’s Ordination and the Church’s Order, by the Rev. Doctor Ephraim Radner, ACI
On different aspects and effects of the Ordination of Women, by the Reverend Peter Toon D. Phil