<s>
Raindrop	O
is	O
a	O
messaging	O
application	O
building	O
on	O
Apache	O
's	O
CouchDB	B-Application
which	O
is	O
used	O
through	O
a	O
web	O
interface	O
.	O
</s>
<s>
Raindrop	O
works	O
by	O
collecting	O
messages	O
(	O
currently	O
emails	O
and	O
tweets	O
,	O
but	O
more	O
will	O
be	O
available	O
through	O
addons	O
)	O
and	O
storing	O
them	O
as	O
JSON	B-General_Concept
optionally	O
with	O
attachments	O
in	O
CouchDB	B-Application
.	O
</s>
<s>
They	O
are	O
then	O
served	O
to	O
users	O
with	O
CouchDB	B-Application
's	O
webserver	O
so	O
users	O
can	O
view	O
them	O
in	O
their	O
web	O
browsers	O
.	O
</s>
<s>
Raindrop	O
was	O
introduced	O
by	O
the	B-Operating_System
Mozilla	I-Operating_System
Foundation	I-Operating_System
on	O
Thursday	O
,	O
October	O
22	O
,	O
2009	O
.	O
</s>
<s>
As	O
of	O
February	O
2014	O
,	O
the	O
Mozilla	B-Language
Raindrop	I-Language
project	O
is	O
considered	O
inactive	O
.	O
</s>
