CNN article on the behind-the-scenes production required to move one family out and another in in a few hours.
Newsweek photo set in the White House before and after the inauguration.
NYT somewhat odd diagrams of the White House at various times in history.
(Thanks to Jeff.)
The Elliptical Saloon 
I can’t thank you all enough for finding all this great material. Love the Newsweek set – especially the one near the end where a little family gathers while a Mom, who now just happens to be First Lady of the Land, fixes her little girl’s boot. Wonderful stuff!