Forms filed annually by private foundations with the Internal Revenue Service (IRS), namely the Return of Private Foundation Exempt from Income Tax, 990-PF, and the Annual Report of Private Foundation, 990-AR, contain valuable information which may reveal the scope and purpose of a foundation's past grants. This is the only reliable way to ascertain the foundation's areas of interest. This information is available directly through the IRS, the Foundation Directory, the Foundation Grants Index, and the Foundation Center Source Book Profiles. Included in this paper is a list pinpointing information of importance to grant seekers available on the 990-PF and AR forms, and exactly where on the forms this information can be found. Sample forms are included. (MBR)