The Holocaust Collection includes records related to assets looted by the Nazis, German war crime records, pre-trial Nuremberg interrogation transcripts, captured German records including from concentration camps, and more.
While not all of these records are relevant to genealogy, many are, especially the registers from various concentration camps. As the records are free for the rest of May, it’s good way to take a loot at these incredible historical documents if you’re not a Footnote.com subscriber.
UPDATE: If you are coming to this post from a search or some other way, note that Footnote.com is now Fold3.com and has changing its focus to military records only. While the older records are still on the site, they will not be expanding their non-military collections.