Better Business Bureau (Philanthropy Advisory Services) - Offers information about specific charities in an effort to educate donors and help them give wisely.

Charitable Organizations 501(c)(3) Status (Internal Revenue Service) - Information on requirements for U.S. nonprofit organizations under §501 (c) (3) of the Internal Revenue Code.

GrantCraft - GrantCraft materials offer practical insights and tools to help you be more effective. Hundreds of grant makers — working in different contexts and types of foundations — have contributed their experiences to help create guides, cases, and videos that illuminate the challenges and skills of the craft.

Volunteer Match - A service that lists volunteer opportunities nationwide.