http://www.newyorker.com/online/2007/10/01/slideshow_071001_maps?slide=11#showHeader
Computer-generated images of what Manhattan looked like in the 16th Century
http://www.halfmoon.mus.ny.us/ - Ship's log from the Fall 2007 voyage up the Hudson River in the contemporary replica of Henry Hudson's ship, The Half Moon
http://www.newnetherland.org - Information about the early colony of New Netherland; parent site for the Half Moon ship