here are a bunch of links for the naval aspect of WW2!

http://www.iol.net.au/~conway/ww2/navy.html
(Australian Navy)

http://website.lineone.net/~jimmer/WW2.html
(British Navy)

http://www.german-navy.de/marine.htm
(German Navy)

http://www.ibiblio.org/hyperwar/USN/
(US Navy)

http://www.NavSource.Org/Naval/losses.htm
(US navy losses in detail)

http://motlc.wiesenthal.org/pages/t032/t03285.html
(maps, photos, and text of pacific war, primarily island bases invaded by US Marines)

http://www.regiamarina.it/introduction.htm
(Italian Navy)

http://canopus.lpi.msk.su/~watson/ijn.html
(Japanese Navy)