The Artist's Guide to Grant Writing is on reserve at the Owings Mills Library
Candid Learning, formerly GrantSpace, features extensive information on grants and how to apply for them. It does not require a log in and includes a searchable KnowledgeBase with FAQs like:
Where can I find grants for film or videomakers?
GrantSpace is itself part of a larger site Foundation Center which includes a very useful 990 Finder.
On Association of Baltimore Area Grantmakers website, Grant Writing Resources and the Member List with Website Links are especially useful pages.