Genealogies and local histories tend to be rather specialized publications distributed in small quantities. Identifying and then tracking them down (especially the older ones) can be a little challenging, but is usually worth the effort. Obviously, a whole book dedicated to our family is of interest, but locality-focused books often produce excellent results as well. Here are a few useful sites for identifying, locating and even evaluating family and local histories:

Local Histories: Finding and Evaluating by Myra Vanderpool Gormley, C.G.
www.genealogy.com/genealogy/15_local.htm

Locating Published Genealogies by Donna Przecha
www.familytreemaker.com/15_genes.html

American Local History Network providing links to online local history sites
www.alhn.org

Family History Library Catalog:
www.familysearch.org/Search/searchcatalog.asp