I just created a Google Map on which you can have your GIS listed if you wish.
Goat Island Skiff - Google Maps
Send me your build info: location, boat name, builder name, rig mods (yawl?), blog URL, etc. and I'll put you on the map.
I tried opening up the map to allow anyone to post their own location and immediately picked up some spam. So I closed it again. That means only I can edit it at the moment. If the maintenance becomes a burden, I may ask for help in the future.