http://books.familysearch.org/

" Family History Books is a collection of more than 40,000 digitized genealogy and family history publications from the archives of some of the most important family history libraries in the world. The collection includes family histories, county and local histories, genealogy magazines and how-to books, gazetteers, and medieval histories and pedigrees. The valuable resources included in Family History Books come from the following partner institutions:

Allen County Public Library
Brigham Young University Harold B. Lee Library
Brigham Young University Hawaii Joseph F. Smith Library
Church History Library
Family History Library
Houston Public Library - Clayton Library Center for Genealogical Research
Mid-Continent Public Library - Midwest Genealogy Center"