MetVUW, Victoria University, New Zealand  

Providing 3 and 7 day world forecasts at 6 hour intervals, MetVUW remains one of our favourite weather sources.  The site also offers satellite imagery (NZ and SE Australia), weather radar (NZ), upper air data (NZ), and selected ocean forecasts.                                              
NOAA's National Weather Service Marine Forecasts

Providing current weather forecasts for marine and coastal areas of the US through regularly updated text and graphic files.

NOAA Geostationary Satellite Server

Current and archived satellite imagery for the US.

Skunk Bay Weather

One-stop shopping for all your Puget Sound area weather, Skunk Bay provides links to the University of Washington, NOAA, local weather stations, and more without spending a lot of time searching the internet for individual sources.

Providing current weather forecasts and information for Canada in text form.  

Now providing high resolution radar and satellite overlays, Sailflow offers real-time weather conditions and forecasts for all corners of the globe.