<s>
CoDeeN	B-Application
is	O
a	O
proxy	B-Application
server	I-Application
system	O
created	O
at	O
Princeton	O
University	O
in	O
2003	O
and	O
deployed	O
for	O
general	O
use	O
on	O
PlanetLab	B-Application
.	O
</s>
<s>
Users	O
set	O
their	O
internet	B-Protocol
caches	I-Protocol
to	O
a	O
nearby	O
high	O
bandwidth	O
proxy	O
that	O
participates	O
in	O
the	O
system	O
.	O
</s>
<s>
CoBlitz	O
,	O
a	O
CDN	O
technology	O
firm	O
(	O
2006	O
–	O
2009	O
)	O
,	O
was	O
a	O
take-off	O
of	O
this	O
,	O
in	O
that	O
files	O
are	O
not	O
saved	O
in	O
the	O
web	B-Protocol
cache	I-Protocol
of	O
a	O
single	O
member	O
of	O
the	O
proxy-system	O
,	O
but	O
are	O
instead	O
saved	O
piece-wise	O
across	O
several	O
members	O
,	O
and	O
'	O
gathered	O
up	O
 '	O
when	O
they	O
are	O
requested	O
.	O
</s>
