Good economic times or bad, many congregations look for new kinds of funding for ministry programs. I often run into church staff members who are convinced there is a "magic grant" somewhere that can alleviate their congregation's financial worries—they just need to find it.
Usually, though, there is no magic grant. Congregations who receive grants often work at securing the funding during a period of years because building relationships with funders takes time.
Grants, it's also important to note, most often go toward supporting church programs focused on serving the community, and usually can't be directed toward deficits, operating expenses, or the core internal ministry programs of a church.
Throughout the years, I have worked with a number of church congregations that have secured grants to support their community ministry efforts. This outside funding helps churches hire outreach staff, and sponsor health clinics, housing programs, youth centers, and schools (among many other programs). If administrative or pastoral staff members of the church are working on community programs, then grants may even pay part of their salaries.