Here are some websites specifically targeting multicultural jobseekers. These links will take you directly to the page to post your position.
Chronicle of Higher Education
National Black MBA Association
National Business & Disability Council
Women In Higher Education
Workplace Diversity / Organizations has a listing of organizations that encompass specific as well as general minority-focused recruitment websites. It is a good resource for more specialized fields including communication, finance, and science, among others.
The Diversity Recruitment Advertising Toolkit Directory, 2nd Edition, is a 288-page directory that contains over 650 career-focused, national newsletters, magazines, journals, web sites, job banks and job boards targeting college-educated African American, Arab American, Asian American, Hispanic and Native American professionals. This informative diversity recruitment advertising resource also includes listings of over 210 advertising agencies that specialize in recruitment advertising and marketing, as well as those who have expertise in targeting African American, Asian American, and Hispanic markets. In addition to general interest and career publications and web sites targeting minority professionals, The Diversity Recruitment Advertising Toolkit also lists hundreds of specialized national media in over 30 industries and career specialties.