>National Archives: Genealogists/Family Historians
A great starting place for genealogical research, how-to tips for beginners and experts, links to primary sources world-wide, and databases of family trees.

>National Archives: State Archives
Genealogists may need to get information from state archives and historical societies. 

>Cyndi’s List
A categorized and cross-referenced index to genealogical resources on the Internet, 335,000+ links for family history! 

>State Historical Society of Iowa
A main repository of Iowa historical and genealogical information.