Annandale Virginia Family History Center
3900 Howard Street
Annandale, Virginia 22003-1762
Centreville Virginia Family History Center
14150 Upperridge Drive
Centreville, Virginia 20121-5340
McLean Virginia Family History Center
2034 Great Falls Street
Falls Church, Virginia 22043-1645
Mount Vernon Virginia Family History Center
6219 Villa Street
Alexandria, Virginia 22310-1725
Oakton Virginia Family History Center
2719 Hunter Mill Road
Oakton, Virginia 22124-1614
Maryland State Archives
Very well put together. Be sure to search the Archives' library by family name to find published genealogies.
National Archives and Records Administration — Genealogy
The National Archives preserves and provides access to many federal government records of value to genealogists. Archival databases containing information on Irish famine immigrants, military records and more are among their available online resources.
National Union Catalog of Manuscript Collections
Search NUCMC to see if any archives or societies report owning letters, diaries or other papers left by family members.
State Archives on the Web
The National Archives' Archives Library Information Center provides contact information and links to the websites of state archives, many of which feature valuable research materials and databases.
Allen County Public Library
One of the largest genealogy collections in the country.
Daughters of the American Revolution Genealogical Research Library
The catalog of the library's broad holdings is online, as is the new Genealogical Records Committee National Index. If you believe a patriot is in your family tree, check into the free Patriot Index Lookup Service in the National Society section of their website.
Family History Library Catalog
The Church of Jesus Christ of Latter-day Saints' Family History Library in Salt Lake City holds the world's largest collection of genealogy materials, and much of their collection can be borrowed through their local Family History Centers.
Library of Congress
See particularly the sections on the Local History & Genealogy Reading Room and the American Memory Project, which feature many records of value to genealogy researchers. Collections from the American Memory Project are being moved to their Digital Collections page. A new feature allows users to search several of the library's collections from one search box.
Library of Virginia
This site includes the library's catalog and many digitized records. Many of the microfilmed records are available on interlibrary loan through Fairfax County Public Library.
Mid-Continent Public Library
Investigate the "Genealogy from the Heartland" collection, which this library loans free-of-charge across the country.
A premier genealogical collection in Chicago.
New England Historic Genealogical Society Library
The New England Historic Genealogical Society's website, provides access to the NEHGS library catalog, as well as databases generated from primary and secondary resources vital for New England ancestry research. Some are available with free registration, while others require paid membership. Full access to all the databases is available for free in the Virginia Room.
St. Louis Public Library
Now holds the collection of the National Genealogical Society Library.