Fundsnet Online is an online gateway for nonprofits, colleges and universities to information on grants and funders.
http://www.fundsnetservices.com
eSchool News School Funding Center offers up-to-the-minute information on grant programs, funding sources and technology funding.
http://www.eschoolnews.com/resources/funding/
The Foundation Center has K-12 funding opportunities. http://fdncenter.org/funders/
School Grants is a collection of resources and tips to help educators apply for and get special grants for a variety of projects.
http://www.schoolgrants.org