9to5, National Association of Working Women.
Formed in 1973, this organization is dedicated to putting working women's issues, such as sexual harassment, work/family challenges, and pay equity, on the public agenda.

Bullying in the Workplace.
This site defines the problem of workplace bullying, describes psychological violence and the need for workplace bullying policies. It presents statistics about the perpetrators and their targets (e.g. 80 per cent of the bullies are bosses; women are as likely to be bullies as men; bullied employees waste 10 to 52 percent of their time at work defending themselves; organizations that do not manage bullying perform 30 to 40 percent below organizations that do). Discusses prevention strategies. Includes related links.

Bully Online.
Defines the serial bully, how bullies select their targets, events that trigger bullying, and a typical sequence of events.

Buzzle.com.
Describes the workplace environment and its impact on employee performance.

Workplace Bullying and Trauma Institute.
Includes bullying studies tutorials for targets and their families, legal remedies, a list of employment attorneys, proposed anti-bullying laws and ordinances, and more.