Where can I get a map of the internet?

no offense, but...
it's grazie.
(GRAH-tzee-EH)

is this the sort of thing you are looking for ...
http://weathermap.grnoc.iu.edu/abilene_jpg.html
or this
http://advice.cio.com/node/209
or this
http://www.cheswick.com/ches/map/index.html
or this
http://www.opte.org/maps/

Hmm ... I think they put one up right at the entrance of the internet. Just head south after the portal. It's beside the tourist office :-D

There's also this:

http://www.akamai.com/html/technology/dataviz1.html

(Live load burden & latency mapping)

I think these maps from xkcd (internet cartoon) are amazing and still quite useful:
http://xkcd.com/256/
and
http://xkcd.com/195/

@ben great links, mate

@lercio I think your first, second and last links are broken. shame.

@bpeoples great link too :)

Perhaps not exactly what you were looking for, but..

this, this wiki page along with this (or redirect here from the last two) & definitely this might be interesting.

BAM