I really love the Library of Congress' photostream on Flickr. It features great quality images of immigrants first arriving into the U.S. and other ones of the past.
Here's a collection of my favourite:
Soda jerker flipping ice cream into malted milkshakes.
Mr. and Mrs. Andrew Lyman, Polish tobacco farmers near Windsor Locks, Connecticut.
My favourite is Mr and Mrs Lyman, they are just so happy!
Which one is your favourite? What's your favourite Flickr photostream lately?