YES, see the IRS public disclosure requirements at http://www.irs.gov/charities/article/0,,id=135008,00.html
Former location: http://www.irs.gov/instructions/i990-ez/ar02.html#d0e2244
The list of contributors' names in Schedule B may remain confidential.
As of 2006, the IRS Form 990-T must also be available for public inspection.
KEYWORDS: PUBLIC DISCLOSURE, PUBLIC INSPECTION