<s>
So.cl	B-Application
(	O
pronounced	O
"	O
social	O
"	O
)	O
was	O
a	O
social	O
networking	O
service	O
and	O
social	O
search	O
engine	O
operated	O
by	O
Microsoft	O
FUSE	O
Labs	O
.	O
</s>
<s>
They	O
announced	O
on	O
March	O
7	O
,	O
2017	O
that	O
it	O
would	O
be	O
closing	O
down	O
So.cl	B-Application
on	O
March	O
15	O
,	O
2017	O
.	O
</s>
<s>
So.cl	B-Application
appeared	O
similar	O
to	O
Google+	B-Application
and	O
borrows	O
concepts	O
from	O
Facebook	B-Application
,	O
Twitter	B-Application
and	O
Pinterest	B-Application
.	O
</s>
<s>
Signup	O
and	O
login	B-General_Concept
required	O
a	O
Microsoft	O
account	O
or	O
So.cl-connected	O
Facebook	B-Application
account	O
.	O
</s>
<s>
Users	O
could	O
share	O
content	O
they	O
viewed	O
on	O
the	O
Internet	O
with	O
other	O
users	O
by	O
installing	O
the	O
cl	O
's	O
Bookmarklet	O
application	O
which	O
added	O
a	O
“	O
Share	O
on	O
So.cl”	O
button	O
to	O
the	O
browser	O
's	O
bookmark	O
bar	O
.	O
</s>
<s>
Video	O
Parties	O
were	O
collections	O
of	O
live	O
YouTube	B-General_Concept
video	I-General_Concept
shared	O
and	O
edited	O
by	O
users	O
.	O
</s>
<s>
So.cl	B-Application
launched	O
in	O
December	O
2011	O
and	O
was	O
first	O
available	O
through	O
a	O
partnership	O
to	O
students	O
of	O
the	O
University	O
of	O
Washington	O
,	O
Syracuse	O
University	O
,	O
and	O
New	O
York	O
University	O
.	O
</s>
<s>
The	O
web	O
address	O
is	O
a	O
domain	B-Application
hack	I-Application
using	O
the	O
.cl	O
top	O
level	O
domain	O
.	O
</s>
