<s>
Connotea	B-Protocol
was	O
a	O
free	B-Application
online	O
reference	B-Application
management	I-Application
service	O
for	O
scientists	O
,	O
researchers	O
,	O
and	O
clinicians	O
,	O
created	O
in	O
December	O
2004	O
by	O
Nature	O
Publishing	O
Group	O
and	O
discontinued	O
in	O
March	O
2013	O
.	O
</s>
<s>
It	O
was	O
one	O
of	O
a	O
breed	O
of	O
social	B-General_Concept
bookmarking	I-General_Concept
tools	I-General_Concept
,	O
similar	O
to	O
CiteULike	B-Application
and	O
del.icio.us,	O
where	O
users	O
can	O
save	O
links	O
to	O
their	O
favourite	O
websites	O
.	O
</s>
<s>
ReadCube	B-Application
is	O
a	O
similar	O
free	B-Application
service	O
that	O
offers	O
storage	O
,	O
annotation	O
and	O
sharing	O
tools	O
specifically	O
for	O
scientific	O
documents	O
.	O
</s>
<s>
Connotea	B-Protocol
was	O
aimed	O
primarily	O
at	O
scientists	O
(	O
though	O
the	O
user	O
community	O
included	O
other	O
academic	O
disciplines	O
)	O
,	O
and	O
while	O
users	O
could	O
bookmark	O
any	O
webpage	O
they	O
chose	O
,	O
it	O
incorporated	O
special	O
functionality	O
for	O
certain	O
academic	O
resources	O
.	O
</s>
<s>
Connotea	B-Protocol
recognised	O
a	O
number	O
of	O
scientific	O
websites	O
and	O
automatically	O
collected	O
metadata	O
for	O
the	O
article	O
or	O
page	O
being	O
bookmarked	O
,	O
including	O
author	O
and	O
publication	O
names	O
.	O
</s>
<s>
An	O
alternative	O
method	O
of	O
adding	O
an	O
article	O
was	O
to	O
retrieve	O
the	O
Connotea	B-Protocol
form	O
and	O
add	O
the	O
Digital	O
Object	O
Identifier	O
(	O
DOI	O
)	O
for	O
the	O
article	O
.	O
</s>
<s>
When	O
saving	O
an	O
article	O
to	O
Connotea	B-Protocol
,	O
users	O
"	O
tagged	O
"	O
the	O
article	O
with	O
keywords	O
of	O
their	O
choice	O
which	O
they	O
could	O
later	O
use	O
to	O
find	O
it	O
again	O
.	O
</s>
<s>
"	O
C	O
.	O
elegans	O
"	O
,	O
the	O
social	O
aspect	O
of	O
Connotea	B-Protocol
was	O
developed	O
.	O
</s>
<s>
Allowing	O
completely	O
free	B-Application
tagging	O
means	O
a	O
folksonomy	B-General_Concept
can	O
gradually	O
develop	O
.	O
</s>
<s>
By	O
default	O
,	O
links	O
posted	O
to	O
Connotea	B-Protocol
were	O
publicly	O
viewable	O
,	O
allowing	O
network	O
effects	O
to	O
build	O
up	O
rapidly	O
,	O
but	O
it	O
was	O
also	O
possible	O
for	O
users	O
to	O
keep	O
selected	O
links	O
private	O
,	O
either	O
indefinitely	O
or	O
until	O
a	O
specified	O
date	O
and	O
time	O
.	O
</s>
<s>
Connotea	B-Protocol
also	O
provided	O
RSS	O
feeds	O
,	O
allowing	O
users	O
to	O
keep	O
track	O
of	O
articles	O
posted	O
under	O
interesting	O
tags	O
or	O
by	O
users	O
with	O
similar	O
interests	O
.	O
</s>
<s>
Connotea	B-Protocol
had	O
the	O
capacity	O
to	O
export	O
the	O
references	O
in	O
RIS	O
format	O
to	O
a	O
citation	B-Application
manager	I-Application
program	I-Application
.	O
</s>
<s>
This	O
meant	O
that	O
it	O
was	O
possible	O
to	O
save	O
references	O
when	O
working	O
on	O
a	O
computer	O
without	O
such	O
bibliographic	B-Application
software	I-Application
installed	O
and	O
import	O
them	O
into	O
this	O
software	O
for	O
citing	O
at	O
a	O
later	O
stage	O
.	O
</s>
<s>
In	O
September	O
2005	O
,	O
Connotea	B-Protocol
won	O
the	O
Association	O
of	O
Learned	O
and	O
Professional	O
Society	O
Publishers	O
Award	O
for	O
Publishing	O
Innovation	O
,	O
and	O
in	O
November	O
2005	O
was	O
shortlisted	O
for	O
the	O
International	O
Information	O
Industry	O
awards	O
in	O
the	O
Best	O
Scientific	O
,	O
Technical	O
and	O
Medical	O
(	O
STM	O
)	O
Product	O
category	O
.	O
</s>
<s>
Connotea	B-Protocol
discontinued	O
service	O
on	O
March	O
12	O
,	O
2013	O
.	O
</s>
