Google has released a new Mash-up feature for their Maps service. Basically anyone can put together a map and submit it to google. Then users can overlay multiple specialty maps over google’s satellite view of the earth.
I have mashed-up a few marine and navigational tools in the map shown above. Tools include a great circle sailing calculator, tsunami warning map and VOS (vessel weather observations) and AMVER reports (from Mike’s Place). If you find any other maritime related maps enter them in the comments below and I’ll post the final version to our Weather Tools section.