Forensicgenealogy.info –  An excellent Forensic Genealogy site by Colleen Fitzpatrick PhD. She has worked for NASA and on high profile cases including Amelia Earhart, The Titanic, Somerton Man and Abraham Lincoln’s DNA.  She has authored three excellent books on Forensic Genealogy.   She hosts a Forensic Genealogy forum on facebook with great discussions and posts.
http://forensicgenealogy.info/

Ancestry.com – One of the top family research sites on the internet. Family trees, DNA and scanned in historical documents and censuses at your fingertips.
http://www.ancestry.com

Ushmm.org – Holocaust victims and lists searchable database.
http://www.ushmm.org/remember/the-holocaust-survivors-and-victims-resource-center/holocaust-survivors-and-victims-database