*$ [http://www.fold3.com/ Fold3] (formerly Footnote.com) works with US government agencies and provides hundreds of millions entries with data on families.
*[http://www.genserv.com <strike>GenServ.com</strike>]<strike>is a large gateway website with 1000s of website links to it</strike> see the WayBack Machine at Archive.org for possible accessibility to the data for this now defunct website
*[http://www.rootsweb.ancestry.com/ Rootsweb.com] is a well-known site providing a search of nearly 300 million names with already completed data
*[https://i-share.carli.illinois.edu/nby/cgi-bin/Pwebrecon.cgi?DB=local&PAGE=First Newberry Library (Chicago, IL) online catalog] - this library has one of America's largest published and manuscript family history collections available. Consider the Inter-library loan service for access.
*Repositories and libraries. Search those libraries and repositories holding the largest collections of compiled sources with online catalogs. Many of them especially hold published or manuscript family histories, genealogies, biographies and other compiled family and local histories (and many of which may have one and often more—internal alpha-arranged listing or index or related database[s]). If a publication is found, often you can order it through the Inter-Library Loan Service.