Gender-based discrimination, harassment, and violence against women in the workplace and society generally have assumed new legal and political significance as a consequence of recent high profile proceedings involving alleged misdeeds by elected government officials, members of the military, public school teachers and students, and the private corporate sectors. This report reviews the judicial evolution of sexual harassment law, including a discussion of four recent U.S. Supreme Court rulings that dealt with the issue of same-sex harassment and determined the liability of employers and school districts for harassment by supervisory employees and acts directed against public school students.