The Foundation Center web site has a two-page Foundation Giving Preview which is a prelude to their full report to be issued in February 2007.

Education and health remained the top priorities of private
and community foundations included in the Foundation
Center’s grants sample in 2005. Support for most major
subject areas grew, with international affairs and the
environment posting the largest gains. By type of support,
the share of foundation grant dollars allocated for capital
projects rose to 18.5 percent, following five consecutive
years of decline. These findings are based on all grants of
$10,000 or more awarded by 1,154 of the largest
foundations.

The site includes a free search engine for foundations for searching on name, state or zip code. Once you have found a list there are links directly to the 990 reports for each foundation. There are prospect worksheets for both institutional and individual donors. They have listings of Requests For Proposals as well as a training materials for proposal writing.