Shorpy
If you like interesting historical sites, this one is for you…it’s a really cool site I ran across this morning which posts detailed scans of photos, many of which are a century old or older.
Add it to your RSS readers: http://www.shorpy.com/shorpy

From the site:
Shorpy.com is the 100-year-old photography blog that brings our ancestors back, at least to the desktop. The site is named after Shorpy Higginbotham, a boy who worked in an Alabama coal mine near the turn of the century.