Useful Links
Government Agencies
National Association of State Charity Officers
A Listing of Websites of State Charity Offices
IRS Tax Information for Charitable Organizations
IRS New Developments Relating to Nonprofits
IRS Charity Search. All organizations permitted to accept tax deductible contributions (except for synagogues and churches) are listed in this database.

Extensive Lists of Online Resources Relating to Charities
NASCOnet "Philanthropy-Related Resources on the Web"
National Center for Charitable Statistics "Links"

Databases of Charities
In the United States: Guidestar
In Israel: Giving Wisely

Learning about Tzedakah and Giving
Jewish Virtual Library -- Tzedakah
My Jewish Learning -- Tzedakah
Minnesota Charities Review Council: "A Donor's Guide to the IRS Form 990" The Form 990 is the IRS information form that must be filed annually by charitable organizations (synagogues and churches are exempt).

Tzedakah Clubs
Kavod: A Tzedakah Collective
Religious Action Center of Reform Judaism "Creating Tzedakah Collectives"

About Tzedakah for Young Hearts and Minds
Machar: Engaging Jewish Youth to Fight Poverty
Areyvut
Learning to Give

Online Giving Opportunities
Shop for Tzedakah
Jewish Funders Network