<s>
Ecocho	B-Application
was	O
a	O
search	B-Application
engine	I-Application
with	O
the	O
aim	O
of	O
offsetting	O
carbon	O
emissions	O
by	O
donating	O
70%	O
of	O
revenues	O
to	O
'	O
carbon	O
offset	O
credits	O
 '	O
.	O
</s>
<s>
It	O
is	O
owned	O
by	O
the	O
Found	O
Agency	O
,	O
a	O
search	B-Application
engine	I-Application
optimisation	O
company	O
.	O
</s>
<s>
The	O
Ecocho	B-Application
search	O
was	O
powered	O
by	O
Yahoo	B-Application
!	I-Application
</s>
<s>
after	O
a	O
termination	O
of	O
their	O
account	O
with	O
Google	B-Application
.	I-Application
</s>
<s>
For	O
every	O
1,000	O
searches	O
,	O
Ecocho	B-Application
claimed	O
that	O
1	O
ton	O
of	O
greenhouse	O
gases	O
are	O
offset	O
through	O
the	O
planting	O
of	O
trees	O
.	O
</s>
<s>
On	O
22	O
April	O
2008	O
,	O
Ecocho	B-Application
was	O
informed	O
by	O
Google	B-Application
that	O
they	O
would	O
be	O
denied	O
the	O
use	O
of	O
Google	B-Application
's	I-Application
search	O
technologies	O
for	O
multiple	O
past	O
violations	O
of	O
Google	B-Application
's	I-Application
policies	O
.	O
</s>
<s>
The	O
issue	O
has	O
been	O
discussed	O
on	O
the	O
Ecocho	B-Application
blog	O
.	O
</s>
<s>
The	O
mixed	O
reactions	O
from	O
users	O
can	O
be	O
seen	O
in	O
the	O
blog	O
comments	O
,	O
some	O
taking	O
further	O
action	O
by	O
complaining	O
to	O
Google	B-Application
,	O
and	O
others	O
agreeing	O
with	O
Google	B-Application
.	I-Application
</s>
<s>
The	O
registration	O
of	O
the	O
domain	O
name	O
"	O
ecocho.co.uk	O
 "	O
expired	O
on	O
March	O
10	O
,	O
2009	O
,	O
and	O
it	O
was	O
activated	O
again	O
for	O
a	O
short	O
period	O
of	O
time	O
with	O
few	O
variations	O
in	O
graphics	O
from	O
June	O
2009	O
,	O
until	O
it	O
was	O
finally	O
closed	O
between	O
2011	O
and	O
2012	O
.	O
</s>
