Helps potential donors make intelligent giving decisions by providing independent evaluations of the financial health of the largest US charities.  Find detailed, easy to understand reports on over 3400 charities that analyze fundraising, program and administration expenses.  Also find ratings and comparisons with like organizations. 

Searchable database of U.S. nonprofit organizations.  Listings include information on background, mission, goals, and finances.  Some listings provide copies of their annual IRS Form 990.

Sponsored by the Better Business Bureau.  Find background and financial information on dozens of "nationally soliciting charitable organizations."

From the California Attorney General, this site contains information on more than 85,000 registered charities in California.  Many listings provide copies of their annual IRS Form 990.