Google Map Overlays by Dustin Smith.
From the post:
National Geographic is adding 500 of their classic maps to the Google public data archive. Basically, these are layers mapped onto Google’s existing map engine. The press release contained two examples, but bizarrely, no link to the public gallery where the NattyG maps will eventually appear.
My experience with press releases and repeated press release sites is that they rarely include meaningful links.
I don’t have an explanation as to why but I have seen it happen too often to be by chance.
Some sites include off-site links but trap you within a window from that site with their ads.