Better Business Bureau Wise Giving Alliance - Covers ethical standards, news, reports, on charities and other soliciting organizations. The site provides the mission/purpose of each organization, some financial information, and whether they meet BBB standards.
GuideStar - A national database of U.S. charitable organizations that gathers and distributes data on more than 850,000 IRS-recognized nonprofits. You can search the nonporofit organization database at no cost by doing a Quick Search. You can also register your nonprofit and have access to various reports and features. Fee-based services include full-featured searches of the GuideStar database, and access to the Grant Explorer, a database of funders that contains information on more than 34,000of the nation's largest private foundations.