The Foundation Center announces the release of a new research report on corporate giving. This report provides estimates of 2005 giving by the nation's nearly 2,600 grantmaking corporate foundations and data on actual giving from 1987-2004. It includes analyses of corporate foundation giving relative to other types of foundations and to all sources of private giving, giving by subject focus, type of support, and region. Also provided is a list of the top 25 corporate foundations by giving.