http://www.grantwrangler.com/
Grant Wrangler is a free online resource for K-12 schools to find grants, sweepstakes, and funding for classroom projects. This user-friendly searchable database posts new grant opportunities each week and has a place for organizations to submit new grants. There is also a free bi-weekly bulletin you can subscribe to and a grant-writing service called Nimble to help schools develop successful grant-writing skills.