Federal Grant Guide
"How to Find and Win Federal Grants" by Susan H. Gray. Completely updated, this guide is for nonprofit organizations to find, apply for, and win federal grants. Also provides suggestions for developing projects and proposals worthy of federal funding, where to quickly access the information on more than 1,000 federal grants, loans, and other assistance programs, and covers the legal and financial responsibilities of grant recipients. 2003-2004, 200 pp. $195 http://www.federalgrantguide.com/

Federal Grants Wire
Federal Grants Wire is a free resource for federal grants and loans information. Lists 1300+ current federal grants, listed by agency, subject area and name, including over 200 environmental grants to choose from. http://www.federalgrantswire.com

Fundnet Services
Site provides extensive list of funding organizations, grant-writing assistance, and resources applicable to the process. http://www.fundsnetservices.com 
GrantsAlert.com
The number one goal at GrantsAlert.com is to make life a little easier for those who devote their time to searching for education grants and identifying new funding opportunities for their organizations, schools, districts, consortia and state education agencies.  http://www.grantsalert.com

Grants.gov
The Department of Health and Human Services federal E-Grants initiative via the Internet.  http://www.grants.gov/ 
Grants Office
Grants Office makes it easy to find funding for any service, program or research activity, through:
-Easy-to-access federal, state, and foundation grants information that is updated daily
-Weekly E-mail and/or FAX notices about grants that match your interests
-A dynamically generated deadline calendar that matches your criteria

http://www.grantsoffice.com/GOMain.asp

Grant Sources of Educators
A List from Kathy Schrock's Guide for Educators, on grant-writing techniques and funding sources. http://school.discovery.com/schrockguide/business/grants.html 

Guide to Grantseeking on the Web
The Foundation Center Guide to maximize use of the World Wide Web for funding research. The 2003 Edition contains many new links and provides a gateway to the numerous online resources available to grantseekers. http://fdncenter.org/learn/bookshelf/grantseek/summary.html

North American Association for Environmental Education www.eelink.net