Okay these are some really cool maps if you are into networking (and i know you are):
They show submarine communications cables. What a job to lay down those suckers.
I followed the PPC-1 installation a while back. Its the new submarine cable going into Australia. It had its own blog, with info and pictures. Very interesting.
Also, to find out about the history of submarine cables, goto http://en.wikipedia.org/wiki/Submarine_communications_cable.
All in all some good and interesting info.