Grant monies are usually not available for new venture businesses, with a few exceptions of high technology businesses. You may find grant information at your local library or online: www.cfda.gov www.grants.gov
Some online resources:
Cautions about free money scams and links to specific government grants.
Excellent tutorial on grant-writing.
Grant Information on SBA's website: http://www.sba.gov/services/financialassistance/grants/index.html
Listen to the Podcast below about grants for business.