Alaska Ferry System (Alaska Marine Highway-- The "Blue Canoes")
http://www.dot.state.ak.us/amhs/index.html
Guide to Gustavus (good source of information on lodging and the like)
http://www.gustavus.com/index.html
Glacier Bay National Park
Glacier Bay Kayaks-- Rents boats right at Park Headquarters
http://www.glacierbayseakayaks.com/index.html
Sea Otter Sea Kayaks (in Gustavus)-- rents boats and will transport them from Gustavus to Bartlet Cove (Park HQ)
Alaska Boat and Kayak (in Juneau)-- rents boats in Juneau-- FOR A FEE WILL TRANSPORT YOUR KAYAKS FROM FERRY TO GLACIER BAY FERRY. WILL STORE BOATS OVERNIGHT AT THEIR SHOP. VERY HELPFUL PEOPLE.
Forrest Service Cabins (none in Glacier Bay but if you're planning a trip elsewhere in Southeast)
http://www.fs.fed.us/r10/tongass/recreation/rec_facilities/cabinlist.html#psg
Marine Weather (for Glacier Bay and other popular areas in Alaska)
http://www.arh.noaa.gov/wmofcst.php?wmo=FZAK51PAJK&type=marine
Tidal Predictions (Icy Strait including Glacier Bay)
http://co-ops.nos.noaa.gov/tides05/tab2wc2b.html#151