ancestry.com

there have been some articles about ancestry.com making its archive of military records available for free through 6.6.2007, but you can actually search for info about anyone, regardless of whether or not they served. i found my father and his brother's ww2 army enlistments, but also my mother's family in the 1930 census and her younger brother's departure from honolulu for san francisco in 1947! fascinating if you're into that kind of stuff.