Management Information

Center for Creative Leadership
Offers research, product and program information.
BoardSource
Formerly known as the National Center for Nonprofit Boards. Especially usefull for association leaders.
weLead Inc.
Nonprofit organization that promotes leadership development in organizations, communities and individuals.
Learning Institute for Nonprofit Organizations
Provides access to resources on board development, fundraising and strategic planning.
Foundation Center
Provides information on every foundation in the United States and how to apply for grants to these foundations. It does have a member only section.
Guidestar
A national database for nonprofits. Lists the financial information for almost a million nonprofits. Excellent research material.
Idealist
Idealist.org is a leading nonprofit job site. Organizations can also list events, volunteer opportunities and internships. It also provides a list of consultants.
Center for Philanthropy and Nonprofit Leadership
A resource center with information on starting, running and funding an organization.
Putnam Barber Resource Center
Resource Center provides questions and answers posted by nonprofit managers.
Network For Good
Site allows people to find volunteer opportunities and donate to nonprofits.
Volunteer Match
Volunteer Opportunities listed across the country by zipcode and area of interest.
Tech Soup