<s>
SearchFox	B-Application
was	O
a	O
web	B-Application
search	I-Application
engine	I-Application
company	O
based	O
in	O
the	O
United	O
States	O
.	O
</s>
<s>
It	O
was	O
acquired	O
by	O
Yahoo	B-Application
!	I-Application
</s>
<s>
on	O
January	O
17	O
,	O
2006	O
and	O
merged	O
into	O
the	O
Yahoo	B-Application
!	I-Application
</s>
<s>
Search	B-Application
service	I-Application
.	O
</s>
<s>
SearchFox	B-Application
offered	O
personalized	O
RSS	O
feeds	O
which	O
were	O
customized	O
according	O
to	O
user	O
preferences	O
.	O
</s>
<s>
The	O
website	O
also	O
had	O
a	O
collaborate	O
search	B-Application
engine	I-Application
,	O
which	O
visitors	O
could	O
use	O
to	O
share	O
favorite	O
links	O
among	O
friends	O
and	O
create	O
personalized	B-Application
search	I-Application
indices	O
for	O
their	O
own	O
convenience	O
.	O
</s>
<s>
Upon	O
launching	O
,	O
Michael	O
Arrington	O
of	O
TechCrunch	O
commented	O
,	O
"	O
It	O
's	O
the	O
first	O
product	O
I	O
've	O
seen	O
that	O
does	O
a	O
good	O
job	O
of	O
prioritizing	O
new	O
content	O
from	O
feeds	O
based	O
on	O
your	O
historical	O
reading	O
behavior	O
,	O
as	O
well	O
as	O
data	O
gathered	O
from	O
the	O
SearchFox	B-Application
community	O
as	O
a	O
whole	O
.	O
</s>
<s>
Yahoo	B-Application
!	I-Application
</s>
<s>
offered	O
to	O
purchase	O
the	O
company	O
on	O
January	O
17	O
,	O
2006	O
,	O
which	O
SearchFox	B-Application
accepted	O
.	O
</s>
<s>
The	O
company	O
's	O
assets	O
and	O
employees	O
were	O
all	O
acquired	O
by	O
Yahoo	O
!,	O
and	O
SearchFox	B-Application
moved	O
to	O
Sunnyvale	O
,	O
California	O
,	O
where	O
Yahoo	B-Application
!	I-Application
</s>
