http://id.google.com/
http://gg.google.com/
http://gmaps-utility-library.googlecode.com/
http://maps.gstatic.com/
http://mt0.google.com/
http://mt1.google.com/
http://mt2.google.com/
http://mt3.google.com/
http://geo0.ggpht.com/
Eu utilizo Squid, mas serve para qualquer um.
abraço.
