This is a resource I just discovered. If I'm reading the website description correctly, it is a free service. To quote from the intro paragraph that says:
"The Archive's ever-expanding collection of genealogy resources includes items from the Allen County Public Library Genealogy Center in Fort Wayne, Indiana; Robarts Library at the University of Toronto; the University of Illinois Urbana-Champaign Library; and the Boston Public Library.
Resources include books on surname origins, vital statistics, parish records, and other historical and biographical documents."
Internet Archive: Free Downloads: Genealogy