Idealist.org
Idealist is an interactive site where people and organizations can exchange resources and ideas, locate opportunities and supporters, and take steps toward building a world where all people can lead free and dignified lives. Idealist provides a comprehensive database of tools for organizations. This site is a great one stop resource for the beginner as well as advance nonprofit organizer.
●  Website: http://idealist.org

Campus Compact
Campus Compact is a national coalition of more than 1,100 college and university presidents - representing some 6 million students - dedicated to promoting community service, civic engagement, and service-learning in higher education.
●  Website:  http://www.compact.org/

E-volunteerism.com
The on-line journal that caters to volunteer leaders/managers who want to go beyond the mundane in the volunteerism field. Every item in the publication is interactive, inviting readers to contribute comments and additional materials.
●  Website:  http://www.e-volunteerism.com

Hands on Network
Largest volunteer network in the nation and includes more than 250 HandsOn Action Centers that reach more than 83% of the nation’s population and extend to 10 countries.
●  Website: www.handsonnetwork.org/

Network for Good
Uses the web to help people get more involved in philanthropy in the U.S. Features nonprofit resources, online donation forms, volunteer opportunities, research and more.
●  Website: www.networkforgood.org

Corporation for National and Community Service Resource Center
The Resource Center, administered by ETR Associates, is the knowledge management training and technical assistance provider to the Corporation for National and Community Service. It connects service programs with targeted training and information.
●  Website: http://nationalserviceresources.org/

Energize, Susan Ellis
This site provides monthly essays and articles on new topics in the field of volunteerism. They also have an on-line library and bookstore with resources for volunteer managers as well as a Referral Network with links to everything in the volunteer field - conferences, awards, web sites and more.
●  Website:  http://www.energizeinc.com

Non-Profit Quarterly
Non-profit magazine promoting spirited Non-profit management. Browse articles by topic.
●  Website: www.nonprofitquarterly.org/

NonprofitRisk Management Center
The Nonprofit Risk Management Center was established in order to provide assistance and resources for community-serving nonprofit organizations with practical, affordable suggestions for controlling risks that threaten a nonprofit's ability to accomplish its mission.
●  Website:  http://www.nonprofitrisk.org

Managementhelp.org
The Library provides free, easy-to-access, online articles to develop yourself, other individuals, groups and organizations (whether the organization is for-profit or nonprofit). Over the past 15 years, the Library has grown to be one of the world's largest well-organized collections of these types of articles and resources.
●  Website: http://www.managementhelp.org/org_eval/uw_fnce.htm