Genealogy
Social Security Death Index
http://www.ancestry.com/search/rectype/vital/ssdi/main.htm
This searchable index includes over 63 million death records from the Social Security Administration. Not sure when or even where you ancestor died? Narrow it down with this source.
American Family History Immigration Center
http://www.ellisisland.org/
The main appeal of this site is that the user can search Ellis Island records for the arrival of an ancestor.
The USGenWeb Project
http://www.usgenweb.org/
This site provides no actual source material but does include links to state genealogical societies, archives, and indexes.
Genealogy.com
http://www.genealogy.com
This is a good site to begin with for someone searching for their genealogy.
Cyndi's List of Genealogy Sites on the Internet – Ireland and Northern Ireland
http://www.cyndislist.com/ireland.htm
This would be a good site to begin with for anyone searching for his or her family history.
LDS Church Family History Resources
http://www.lds.org/familyhistory/0,5038,6,FF.html
This site has plenty of information for people who are just starting to do family history research. You can also find the nearest Family History Center.
National Archives and Records Administration
http://www.nara.gov/genealogy/genindex.html
This site provides many of the finding aids, guides, and research tools that can
help you to find information stored at the NARA.