The U.S. National Archives today released the returns from the 1940 national census, providing an invaluable resource to historians and genealogists. At the moment, you'll need to know the particular address you want to see--the records are not yet searchable by name. A companion project seeks to fix that by enlisting your help in a crowdsourced project to index the census data. However, if you're looking for a New York address, you can use this clever site from the New York Public Library to look someone up in the 1940 phone book. (FYI, the site seems to be running a bit sluggishly under first-day load, so you may need to be patient.)
posted by Horace Rumpole on Apr 2, 2012 - 31 comments

Racebox.org A history of racial classification on the U.S. Census from 1790 to 2010.
posted by jonp72 on May 28, 2010 - 43 comments

The Victorian Dictionary: A motley collection of primary source documents and reference materials about Victorian London by historical thriller author Lee Jackson. Read the 1841 Census, browse peroid advertisements, zoom in on the 1881 Pocket Guide to London or just learn some dirty words.
posted by The Whelk on Apr 19, 2010 - 17 comments

US Census Bureau Facts & Figures: Holiday Edition says that more than 20 billion letters, packages and cards will be delivered this holiday season and 12 million packages a day through to Christmas Eve. Also check out the Special Edition for comparison data from 1915, 1967 and 2006, the African-American History Month Facts & Features and more data going back to 2000.
posted by fenriq on Dec 15, 2006 - 4 comments

1901 Back on it's feet again... At last it's the 1901 show!(the date not the time) and the UK Public Record Office 1901 Census is up and testing again after having crashed due to overdemand earlier in theyear. And it works! I've discovered my great grandfather was a wheelwright and that his eldest son was a labourer at the gas works (I saw my first naked girlfriend in a bedroom in the shadow of that very gasworks!) and that I had a great great Uncle Percy!
posted by terrymiles on Nov 15, 2002 - 4 comments