ACORN
"We are the country's largest grassroots community organizations with offices in 99 cities in 37 states, and growing.  Most of our staff are community organizers who work with low-and moderate income community residents to build local organizations powerful enough to win the changes residents want.  Our community organizing positions start at $25,000 per year plus benefits."

Action Without Borders: Nonprofit Career Center
International and national search for social change and non-profit jobs. "Action Without Borders is a global network of individuals and organizations working to build a world where all people can live free and dignified lives."

AFL-CIO Organizing Institutes
"The AFL-CIO Organizing Institute recruits, trains and places talented and committed people in full-time positions helping workers form and join unions in the American union movement."

American Public Health Association Career Mart

Animal Concerns Network Jobs and Volunteering Opportunities

Best Places to Work in the Federal Government
"The Best Places to Work is a first-of-its-kind ranking of federal organizations and the most comprehensive rating of employee satisfaction in federal government agencies to date. The rankings use the opinions of over 100,000 federal workers to rate nearly every federal agency and sub-agency in the executive branch."

Campus Compact National Job Listings

Careers in the Common Good
"Careers in the Common Good connects liberal education with a lifetime of socially responsible work. Careers in the Common Good supports students and alumni as they seek work that connects personal values and professional problem solving in the non-profit, private and government sectors. This site is sponsored by the Swearer Center for Public Service at Brown University."

Community Career Center
"an on-line gathering place where not-for-profit employers and management personnel can meet one another. By posting a job opportunity or candidate credentials with CCC, you can link with thousands of Internet users who may bring new opportunity to your organization or to your career."

College Democrats of America Job Bank

Corporation for National and Community Service Jobs

Deep Sweep
"DeepSweep includes job postings from all walks of the nonprofit sector. Positions advertised include entry-level vacancies and career opportunities for seasoned, nonprofit staff, as well as senior-level executives."

EarthNet Jobs and Internships

EcoEmploy - Environmental Jobs and Careers

Employment with Nonprofit Organizations (list from American Humanics)

Energize - Jobs and Internships
"These jobs and internships have a significant proportion of the required activities focus on volunteer management. The term 'volunteer' includes members, interns, community service participants, etc."

EnviroLink Jobs and Volunteering Opportunities

Environmental Careers Organization

Environmental Protection Agency Student Jobs and Internships

EPA Intern Program
"The EIP is a full-time, permanent, entry-level employment and career development program at the U.S. Environmental Protection Agency. Since our inaugural class in 1998, we have hired 152 new professionals and placed them in our Washington, DC headquarters and eleven regional offices. These are permanent, professional positions, not summer or temporary student jobs."

Equal Justice Works (formerly NAPIL)
"Equal Justice Works organizes, trains and supports public service-minded law students and is the national leader in creating summer and postgraduate public interest jobs."

Feminist Career Center
"Search our job and internship listings OR browse all job listings to find available positions with Feminist and Progressive organizations."

Good Works Directory
"Good Works is a national directory of social change organizations and is the first directory to present alternatives to traditional corporate employment."

Green Dream Jobs
"Business Jobs - Environmental Jobs - Environmentally Responsible Employers"

Leadership Institutes Employment Placement Program
"If you are a serious conservative activist or want to be, we may have a position for you."

Moving Ideas Network Jobs and Internships
Progressive public policy job listings.

National Assembly of Health and Human Service Organizations
Click on "internships and jobs" in the sidebar for a database of internships in youth development and job listings with their member organizations.

National Organizers Alliance Job Bank

Net Impact - New Leaders for Better Business Job Postings
(Available to Net Impact members only).

The New York Foundation for the Arts (NYFA) National Job Listings

Nonprofit Career Network

One World
"The place on the internet for jobs in human rights, environment, and sustainable development"

Opportunity Knocks
A source of nonprofit jobs and career opportunities by city, state, organization or position type. See also, Opportunity NOC's New England.

Orion Grassroots Network Internship & Career Service
"To connect students and professionals with cutting-edge environmental work, The Orion Society offers this free service through the Orion Grassroots Network, a rapidly growing network of over 500 grassroots organizations doing vital work in their communities and home-places. We believe that this place-based work -- in conservation, education, restoration, and environmental justice -- represents the future of the environmental movement."

Partnership for Public Service
Click on "jobs" in right sidebar, but also look at their "Partners" page under "Resources" for a great place to find other public interest organizations

Philanthropy News Digest Job Corner
"The Job Corner features current full-time job openings at U.S. foundations, grantmaking public charities, and nonprofit organizations."

Prewitt Organizing Fund
A self-funded non-profit committed to organizing the unorganized and building an economic justice resource network. The Fund works on behalf of progressive labor unions and social justice organizations to create, resource and win strategic organizing campaings including: first contracts, collective bargaining agreements, key elections and ballot initiatives. The Fund provides campaign design and management; strategic expertise; research support; member and staff training/mentoring; and rapid field support services. They are always accepting applications for campaign coordinators, lead organizers and field organizers, and can offer short-term project-based jobs to labor organizers, political organizers and community activists.

Public Interest Clearinghouse Job Alert
"The Public Interest Clearinghouse promotes justice by supporting organizations that make our legal system more accessible and responsive to people who are traditionally excluded.  The primary mission of the Clearinghouse is to provide information, support, and statewide coordination to the legal services community in order to enhance the delivery of legal services to the indigent."

Public Interest Research Groups (PIRG) Jobs, Fellowships, & Internships
"If you're interested in a job where you can fight for and win solutions to social problems, apply for a job with the state PIRGs."

ReliefWeb: International Humanitarian Vacancies
"ReliefWeb is a project of the United Nations Office for the Coordination of Humanitarian Affairs."

Service Employees International Union (SEIU) Organizers
Fight for Social Justice--Become a Union Organizer!
Service Employees International Union (SEIU) organizers help working people win dignity and respect on the job. Using aggressive and innovative tactics, together we challenge some of the largest and most powerful corporations in the world. And we win! SEIU has openings for both entry- level and experienced organizers. Our Organizer-In-Training Program gives new organizers extensive training and placement throughout the union, with great opportunities for career advancement.

Social Work and Service Jobs
"Social Work Jobs, Social Service Jobs, Mental Health Jobs, Counseling Jobs, Psychology Jobs, Non-Profit Jobs"

Social Work Job Bank

Student Conservation Association


You may also want to search these sites even though they are not exclusively public interest listings:

Jammin Jobs

MonsterTrak.com

Some examples of job resources for specific
states or regions:

CityLimits.org
Nonprofit, social services, government, academic, organizing and arts sector job listings from New York's Urban Affairs News Magazine.

Kansas city council on philanthropy job listings

Nonprofit Resource Center of Alabama

NPO.net
Chicago area nonprofits.

Rhode Island Community Jobs

Young NonProfit Professionals Network
Serves the San Francisco Bay Area.