<s>
Pownce	B-Protocol
was	O
a	O
free	O
social	O
networking	O
and	O
micro-blogging	B-Application
site	O
started	O
by	O
Internet	O
entrepreneurs	O
Kevin	O
Rose	O
,	O
Leah	O
Culver	O
,	O
and	O
Daniel	O
Burka	O
.	O
</s>
<s>
Pownce	B-Protocol
was	O
centered	O
on	O
sharing	O
messages	O
,	O
files	O
,	O
events	O
,	O
and	O
links	O
with	O
friends	O
.	O
</s>
<s>
On	O
December	O
1	O
,	O
2008	O
,	O
Pownce	B-Protocol
announced	O
that	O
it	O
had	O
been	O
acquired	O
by	O
blogging	O
company	O
Six	B-Protocol
Apart	I-Protocol
,	O
and	O
that	O
the	O
service	O
would	O
soon	O
shut	O
down	O
.	O
</s>
<s>
Its	O
launch	O
,	O
on	O
June	O
27	O
,	O
2007	O
,	O
was	O
covered	O
by	O
Wired	O
,	O
Business	O
Week	O
,	O
Webware	B-Application
,	O
and	O
the	O
San	O
Francisco	O
Chronicle	O
,	O
with	O
most	O
of	O
the	O
coverage	O
focusing	O
on	O
Rose	O
,	O
known	O
for	O
his	O
involvement	O
in	O
Digg	B-Application
,	O
Revision3	O
and	O
TechTV	O
.	O
</s>
<s>
Due	O
to	O
this	O
media	O
exposure	O
,	O
invitations	O
for	O
Pownce	B-Protocol
were	O
in	O
high	O
demand	O
and	O
were	O
being	O
sold	O
on	O
sites	O
such	O
as	O
eBay	B-Application
.	I-Application
</s>
<s>
On	O
October	O
30	O
,	O
2007	O
,	O
Pownce	B-Protocol
launched	O
their	O
public	O
API	B-General_Concept
.	O
</s>
<s>
The	O
developers	O
have	O
also	O
created	O
a	O
Pownce	B-Protocol
API	B-General_Concept
Google	O
Group	O
.	O
</s>
<s>
Originally	O
,	O
it	O
was	O
primarily	O
for	O
discussing	O
the	O
release	O
of	O
the	O
API	B-General_Concept
,	O
but	O
it	O
later	O
served	O
to	O
gather	O
feedback	O
and	O
help	O
developers	O
.	O
</s>
<s>
On	O
November	O
12	O
,	O
2007	O
Pownce	B-Protocol
launched	O
a	O
custom	O
theme	O
editor	O
for	O
Pro	O
users	O
.	O
</s>
<s>
On	O
December	O
20	O
,	O
2007	O
Pownce	B-Protocol
launched	O
a	O
mobile	O
version	O
of	O
their	O
service	O
.	O
</s>
<s>
This	O
version	O
could	O
be	O
accessed	O
from	O
a	O
variety	O
of	O
mobile	O
devices	O
at	O
m.pownce.com	O
.	O
</s>
<s>
On	O
December	O
1	O
,	O
2008	O
,	O
Pownce	B-Protocol
announced	O
that	O
they	O
had	O
been	O
acquired	O
and	O
were	O
shutting	O
down	O
the	O
site	O
,	O
due	O
to	O
a	O
lack	O
of	O
revenue	O
,	O
stagnant	O
growth	O
,	O
and	O
an	O
inability	O
to	O
compete	O
with	O
Twitter	B-Application
.	O
</s>
<s>
Pownce	B-Protocol
was	O
compared	O
favorably	O
to	O
other	O
websites	O
with	O
similar	O
functionality	O
like	O
Twitter	B-Application
,	O
and	O
was	O
called	O
a	O
"	O
Twitter	B-Application
on	O
steroids	O
"	O
.	O
</s>
<s>
CNET	O
's	O
Rafe	O
Needleman	O
recommended	O
Pownce	B-Protocol
over	O
Twitter	B-Application
in	O
a	O
work	O
setting	O
because	O
of	O
its	O
discussion-tracking	O
capabilities	O
.	O
</s>
<s>
Pownce	B-Protocol
was	O
built	O
on	O
a	O
variation	O
of	O
the	O
LAMP	B-Application
stack	I-Application
:	O
Debian	O
Linux	B-Application
,	O
Apache	B-Application
,	O
MySQL	B-Application
,	O
and	O
Python	B-Language
.	O
</s>
<s>
The	O
web	B-Application
application	I-Application
was	O
made	O
with	O
Django	B-Language
,	O
an	O
open	B-Application
source	I-Application
web	I-Application
application	I-Application
framework	O
,	O
written	O
in	O
Python	B-Language
.	O
</s>
<s>
File	O
storage	O
was	O
supported	O
by	O
Amazon	B-General_Concept
S3	I-General_Concept
.	O
</s>
<s>
The	O
desktop	O
application	O
was	O
written	O
in	O
Flex	B-Operating_System
for	O
Adobe	O
's	O
AIR	B-Operating_System
platform	O
.	O
</s>
