There are some spectacular photos here but you have to really look for them. The interface is confusing but once you get it, you can switch from photo to nautical chart for the same location. <A HREF="http://mapfinder.nos.noaa.gov/"> look here</A><br><*)))>< BigPete
Check out the microsoft terra server site. It gives you arial b/w shots which you can zoom in to great granularity. Topo maps are also available - you can switch between arial and topo views at the same detail level. And it's FREE!
for real time topo...www.maptech.com...check out their mapserver.
the state has a great gis website...www.state.ma.us/mgis.
has color aerial orthophotos of coast (the pics that mit uses) plus has black and white aerial pics of the rest of the state plus has gis datalayers, scanned topo quads and its all free.
Watch out for the age of the photos at these sites (especially the MIT site). Much of the imagery is >6 years old, which can give an erroneous impression of coastal features (e.g., the location of bars and channels).