Common Application Form from the Donor's Forum of Wisconsin: For non-PDF versions of the form, including a type-in version, go to the Funding Information Center page on the Marquette Libraries site.
Foundation Center: Check out the site map via the link on the bottom left for a clear Table of Contents. Most useful resources are under the Learning Lab link. For sample letters of intent, click on Learning Lab, then FAQs, then "How can I learn about proposal writing?", then "FAQs on proposal writing," and you'll find two links about letters of intent.
Helen Bader Foundation: Use the "Search Grants" button to find model grants, especially for succinct statements of purpose.
Jossey-Bass Publishers Book List on Fundraising and Grantsmanship: They're the leading publishing house--here's a great list of resources. (Tip: sort the list by date of publication to see the most recent books.)
Links Related to the Winning Proposals on the CD-ROM that comes with Mim Carlson’s Winning Grants Step by Step, 2nd ed. (Jossey Bass, 2002)
Angel Island Immigration Station Foundation: See the Letter of Intent, Sample Proposal A on the CD.
Steven and Michele Kirsch Foundation: This is the funder to whom the letter application in Sample Proposal C is addressed.
Nonprofit Guides: Grant-Writing Tools: A detailed resource with excellent models to adapt for your own purposes
Short Course in Proposal Writing: From the Foundation Center in New York City.
The Grantsmanship Center: Lots of great resources here!
United Way of America Outcome Measurement Resource Network: This site could be quite valuable in helping grant writers articulate their outcomes. Includes many online resources.
Valparaiso's Reference Tools for Grant-Seekers: A good collection