No doubt they both have good quality, some areas better than others and Sydney seems to be better catered for than Melbourne and it's surrounding suburbs.
Google Earth if you zoom in on Shelly Beach Manly, you can see the scuba divers and swimmers in the water, brilliant. Same beach and area as the other divers with Nearmap, if you zoom in to the image taken 11 September 2010 not 16 September 2010 and you can see another diver but not as clear
http://www.nearmap.com/[email protected],151.297083&ll=-33.800028,151.297083&z=22&t=k&nmd=20100911 (not sure if link will work).
Google Earth I also find it easier to use/share images and details with others but that could just be because I have used it more?
Nearmap say on their Wiki page that the Mornington Peninsula is planned to be done, just not sure when. They say they update at least once a year if not more for more popular areas with demand but it's been 6 years since they have covered this area. Just hope when they do do it, it's with very high resolution and they cover the shipping channels, Hovel pile, Chinamans hat, South channel fort/light etc, will make it easier to map/plan trips on the bay.
Couple of other interesting Nearmap shots "The HMAS Canberra" it was resently scuttled in 30 meters of water just outside the R.I.P. off Barwon Heads. This shot if you look carefully you can actually pick out its outline amongst the dive boats.
http://www.nearmap.com/?ll=-38.299527,144.543482&z=17&t=k&nmd=20100104And this one is the J3 class sub that was scuttled in its present condition off Swan Point near Queenscliff, where it was to act as a breakwater. It lies in 5-8m of water and is an interesting dive [url]
http://www.nearmap.com/?ll=-38.243918,1 ... d=20100104[/url]