We have been having some interesting sessions here, trying to find our parents and their families on the 1940s US Census forms, which just became available for view on the world wide web. This is just one more valuable tool when searching for your ancestors, along with birth, death and wedding certificates; personal letters; family bibles and so on.
I think as we get older we have more of an interest in our families so that (maybe) we can understand ourselves better.
As one of our priests used to say at church, you don't have to like your family, but you do have to know them.
To find out more about the census, visit http://1940census.archives.gov/