The Making of Modern Michigan is a collaborative project involving more than 50 Michigan libraries. It includes local history materials from communities around the state. Michigan's unique heritage is represented through photographs, family papers, oral histories, genealogical materials, and much more.
As of January 2005, MMM includes contributions from 36 libraries. Collections from another 15 libraries are in the works and will be available soon.The Making of Modern Michigan is headed by the Michigan State University Libraries, in partnership with the Library of Michigan, the Michigan Library Consortium, and the 50+ libraries currently participating in the project.
I found the records for Oakridge Cemetery, Buchanan, MI there. When I looked at the collection they had a surprising number of genealogy and history resources available. The search feature worked well. I think I could spend quite a bit of time poking around the site.