The Foundation Center's Short Course On Proposal Writing
http://fdncenter.org/learn/shortcourse/prop1.html

How To Write a Letter of Inquiry
http://grantproposal.com/inquiry.html

Grantseeker's Checklist
http://www.montana.edu/wwwvr/osp/checklist.html

What Do Winning Proposals Have in Common?
http://teacher.scholastic.com/professional/grants/WinningProposals.htm

Developing a SAMHSA Grant
http://grantstraining.samhsa.gov

Grant Writing Tutorial from the Environmental Protection Agency
http://www.epa.gov/ogd/recipient/tips.htm

Grant Writing Tools for Non-Profit Organizations
http://npguides.org/

General Guidance For Grant Writers From the J. C. Downing Foundation
http://www.jcdowning.org/resources/generalguide.htm