The websites listed below have a wealth of information on the route, places of interest, the Grand Banks 46 Trawler and many other details.
A complete Description of the Great Loop by a couple who recently completed it
A guide to the inland waterways covering the Erie Canal, Trent Severn, Tenn-Tom, etc.
The Grand Banks 46, photos and layout from the Grand Banks website.
Information on the new Marlow Explorer line of pilot house motor yachts (SeaBird II)
Hudson River Valley's Information
Travel info on the Hudson River Valley from New York northward