I'm sure not everyone has all of these, but here's the list they gave. If anyone else has any pertinent NOAA sites, add em here.
JohnR: maybe toss a copy of this post (as an afterthought) in the tips etc. forum?
Atlantic Offshore Water Region Map
http://www.nws.noaa.gov/om/marine/zone/wrdoffmz.htm
National Weather Service/Marine Prediction Center
http://www.mpc.ncep.noaa.gov/
NWS Marine Product Dissemination Homepage
http://www.nws.noaa.gov/om/marine/home.htm
NWS Boston web site
http://www.erh.noaa.gov/er/box
NWS Boston Marine Observations
http://www.erh.noaa.gov/er/box/marineobs2.html
NWS Boston MAREPs online
http://www.erh.noaa.gov/er/box/fcsts/BOSOMRBOS.html
Real Time Forecasts for Nearshore and Offshore Waters
http://www.erh.noaa.gov/er/box/marine2.html
Real Time Forecasts along most of the Eastern Seaboard
http://www.erh.noaa.gov/er/mhx/ermarine/ercwf.htm
NWS Internet Weather Source - Radar
http://weather.noaa.gov/radar/
National Data Buoy Center - Northeast U.S.
http://www.ndbc.noaa.gov/Maps/Northeast.shtml
NDBC Inernational Data Availability
http://www.ndbc.noaa.gov/rmd.shtml
Narragansett Bay PORTS (Physical Oceanographic Real Time System) Data
http://www.co-ops.nos.noaa.gov/nbports/nbAllMET.html
GoMOOS - Gulf of Maine Ocean Observing System
http://www.gomoos.org
Nation Ocean Service - Tides Online
http://tidesonline.nos.noaa.gov/
QuikSCAT Satellite Derived Wind Data
http://manati.wwb.noaa.gov/quikscat/