Video Footage of WWI Submarines
If you happen to be a Facebook user, check out about 2.5 minutes of 1915 film footage of WWI US submarines I have posted on my "Submarine Corps" Facebook page at
http://www.facebook.com/pages/Submarine ... 715?v=wall
...or just go to your OWN Facebook page and enter "Submarine Corps" in the search box.
There are also a bunch of submarine photos in the gallery area.