<s>
Delicious	B-Application
(	O
stylized	O
del.icio.us	B-Application
)	O
was	O
a	O
social	B-General_Concept
bookmarking	I-General_Concept
web	O
service	O
for	O
storing	O
,	O
sharing	O
,	O
and	O
discovering	O
web	O
bookmarks	O
.	O
</s>
<s>
The	O
site	O
was	O
founded	O
by	O
Joshua	O
Schachter	O
and	O
Peter	O
Gadjokov	O
in	O
2003	O
and	O
acquired	O
by	O
Yahoo	B-Application
!	I-Application
</s>
<s>
Yahoo	B-Application
sold	O
Delicious	B-Application
to	O
AVOS	O
Systems	O
in	O
April	O
2011	O
,	O
and	O
the	O
site	O
relaunched	O
in	O
a	O
"	O
back	O
to	O
beta	O
"	O
state	O
on	O
September	O
27	O
that	O
year	O
.	O
</s>
<s>
In	O
January	O
2016	O
Delicious	B-Application
Media	O
,	O
a	O
new	O
alliance	O
,	O
reported	O
it	O
had	O
assumed	O
control	O
of	O
the	O
service	O
.	O
</s>
<s>
On	O
June	O
1	O
,	O
2017	O
,	O
Delicious	B-Application
was	O
acquired	O
by	O
Pinboard	O
,	O
and	O
the	O
bookmarking	O
service	O
was	O
discontinued	O
in	O
favor	O
of	O
Pinboard	O
's	O
paid	O
subscription-based	O
service	O
until	O
it	O
was	O
bought	O
by	O
Maciej	O
Ceglowski	O
in	O
2020	O
.	O
</s>
<s>
Delicious	B-Application
used	O
a	O
non-hierarchical	O
classification	O
system	O
in	O
which	O
users	O
could	O
tag	B-General_Concept
each	O
of	O
their	O
bookmarks	O
with	O
freely	O
chosen	O
index	O
terms	O
(	O
generating	O
a	O
kind	O
of	O
folksonomy	B-General_Concept
)	O
.	O
</s>
<s>
A	O
combined	O
view	O
of	O
everyone	O
's	O
bookmarks	O
with	O
a	O
given	O
tag	B-General_Concept
was	O
available	O
;	O
for	O
instance	O
,	O
the	O
URL	O
displayed	O
all	O
of	O
the	O
most	O
recent	O
links	O
tagged	O
"	O
wiki	B-Protocol
"	O
.	O
</s>
<s>
Delicious	B-Application
also	O
allowed	O
users	O
to	O
group	O
links	O
with	O
similar	O
topics	O
together	O
to	O
form	O
a	O
"	O
Stack	O
"	O
,	O
and	O
include	O
title	O
and	O
descriptions	O
for	O
the	O
Stack	O
page	O
.	O
</s>
<s>
Delicious	B-Application
had	O
a	O
"	O
hotlist	O
"	O
on	O
its	O
home	O
page	O
and	O
"	O
recent	O
"	O
pages	O
,	O
which	O
helped	O
to	O
make	O
the	O
website	O
a	O
conveyor	O
of	O
Internet	O
memes	O
and	O
trends	O
.	O
</s>
<s>
All	O
bookmarks	O
posted	O
to	O
Delicious	B-Application
were	O
publicly	O
viewable	O
by	O
default	O
,	O
although	O
users	O
could	O
mark	O
specific	O
bookmarks	O
as	O
private	O
,	O
and	O
imported	O
bookmarks	O
were	O
private	O
by	O
default	O
.	O
</s>
<s>
Delicious	B-Application
linkrolls	O
,	O
tagrolls	O
,	O
network	O
badges	O
,	O
RSS	O
feeds	O
,	O
and	O
the	O
site	O
's	O
daily	O
blog	O
posting	O
feature	O
could	O
be	O
used	O
to	O
display	O
bookmarks	O
on	O
weblogs	O
.	O
</s>
<s>
The	O
precursor	O
to	O
Delicious	B-Application
was	O
Muxway	O
,	O
a	O
link	O
blog	O
that	O
had	O
grown	O
out	O
of	O
a	O
text	O
file	O
that	O
Schachter	O
maintained	O
to	O
keep	O
track	O
of	O
links	O
related	O
to	O
Memepool	O
.	O
</s>
<s>
In	O
September	O
2003	O
,	O
Schachter	O
released	O
the	O
first	O
version	O
of	O
Delicious	B-Application
.	O
</s>
<s>
In	O
March	O
2005	O
,	O
he	O
left	O
his	O
day	O
job	O
to	O
work	O
on	O
Delicious	B-Application
full-time	O
,	O
and	O
in	O
April	O
2005	O
it	O
received	O
approximately	O
$2	O
million	O
in	O
funding	O
from	O
investors	O
including	O
Union	O
Square	O
Ventures	O
and	O
Amazon.com	B-Application
.	O
</s>
<s>
When	O
Delicious	B-Application
was	O
first	O
launched	O
,	O
it	O
was	O
the	O
first	O
use	O
of	O
the	O
term	O
"	O
tag	B-General_Concept
"	O
in	O
the	O
modern	O
sense	O
,	O
and	O
it	O
was	O
the	O
first	O
explicit	O
opportunity	O
where	O
website	O
users	O
were	O
given	O
the	O
ability	O
to	O
add	O
their	O
own	O
tags	B-General_Concept
to	O
their	O
bookmarks	O
so	O
that	O
they	O
could	O
more	O
easily	O
search	O
for	O
them	O
at	O
a	O
later	O
time	O
.	O
</s>
<s>
Yahoo	B-Application
acquired	O
Delicious	B-Application
on	O
December	O
9	O
,	O
2005	O
.	O
</s>
<s>
On	O
December	O
16	O
,	O
2010	O
,	O
an	O
internal	O
slide	O
from	O
a	O
Yahoo	B-Application
meeting	O
leaked	O
,	O
indicating	O
that	O
Delicious	B-Application
would	O
be	O
"	O
sunsetted	O
"	O
in	O
the	O
future	O
,	O
which	O
seemed	O
to	O
mean	O
"	O
shut	O
down	O
"	O
.	O
</s>
<s>
Later	O
Yahoo	B-Application
clarified	O
that	O
they	O
would	O
be	O
selling	O
Delicious	B-Application
,	O
not	O
ending	O
it	O
.	O
</s>
<s>
This	O
news	O
resulted	O
in	O
Delicious	B-Application
users	O
looking	O
for	O
alternative	O
sites	O
.	O
</s>
<s>
Various	O
other	O
services	O
such	O
as	O
Google	O
Bookmarks	O
and	O
Spabba	O
also	O
offered	O
bookmarks	O
migration	O
tools	O
to	O
allow	O
users	O
to	O
migrate	O
and	O
safeguard	O
their	O
bookmarks	O
out	O
of	O
Delicious	B-Application
.	O
</s>
<s>
On	O
April	O
27	O
,	O
2011	O
,	O
Delicious	B-Application
announced	O
the	O
site	O
was	O
sold	O
to	O
Avos	O
Systems	O
,	O
a	O
company	O
created	O
by	O
Chad	O
Hurley	O
and	O
Steve	O
Chen	O
.	O
</s>
<s>
Unbeknownst	O
to	O
members	O
,	O
Yahoo	B-Application
continued	O
to	O
operate	O
the	O
site	O
until	O
September	O
2011	O
.	O
</s>
<s>
On	O
September	O
26	O
,	O
2011	O
,	O
Delicious	B-Application
launched	O
its	O
completely	O
new	O
version	O
3.0	O
design	O
in	O
beta	O
.	O
</s>
<s>
AVOS	O
Systems	O
removed	O
the	O
Delicious	B-Application
Support	O
Forum	O
and	O
had	O
advised	O
users	O
that	O
communication	O
with	O
Avos	O
should	O
take	O
place	O
via	O
email	O
.	O
</s>
<s>
Trunk.ly	O
offered	O
to	O
automatically	O
save	O
all	O
links	O
that	O
users	O
have	O
"	O
liked	O
"	O
on	O
Facebook	B-Application
,	O
Twitter	B-Application
and	O
LinkedIn	B-Application
.	O
</s>
<s>
This	O
acquisition	O
led	O
to	O
the	O
launch	O
of	O
Twitter	B-Application
Connector	O
on	O
Delicious	B-Application
on	O
March	O
2	O
,	O
2012	O
.	O
</s>
<s>
On	O
May	O
8	O
,	O
2014	O
,	O
Science	O
,	O
Inc	O
.	O
announced	O
it	O
had	O
acquired	O
the	O
Delicious	B-Application
website	O
from	O
AVOS	O
,	O
without	O
acquiring	O
staff	O
.	O
</s>
<s>
On	O
January	O
11	O
,	O
2016	O
,	O
the	O
Delicious	B-Application
blog	O
announced	O
ownership	O
had	O
transitioned	O
to	O
a	O
new	O
company	O
formed	O
between	O
Science	O
and	O
of	O
Domainersuite	O
.	O
</s>
<s>
On	O
June	O
1	O
,	O
2017	O
,	O
Pinboard	O
acquired	O
Delicious	B-Application
.	O
</s>
<s>
As	O
of	O
July	O
15	O
,	O
2020	O
,	O
Maciej	O
Ceglowski	O
has	O
announced	O
ownership	O
of	O
del.icio.us	B-Application
based	O
on	O
the	O
update	O
on	O
the	O
domain	O
.	O
</s>
<s>
After	O
being	O
purchased	O
by	O
AVOS	O
Systems	O
on	O
April	O
27	O
,	O
2011	O
,	O
Delicious	B-Application
went	O
through	O
significant	O
UI	O
redesigns	O
and	O
became	O
more	O
social	O
.	O
</s>
<s>
On	O
September	O
26	O
,	O
2011	O
,	O
Delicious	B-Application
launched	O
its	O
completely	O
new	O
version	O
3.0	O
design	O
in	O
beta	O
.	O
</s>
<s>
Delicious	B-Application
added	O
a	O
new	O
feature	O
called	O
Stacks	O
that	O
allows	O
users	O
to	O
group	O
multiple	O
related	O
links	O
into	O
a	O
single	O
page	O
,	O
and	O
customize	O
the	O
Stack	O
by	O
adding	O
title	O
,	O
description	O
and	O
a	O
featured	O
image	O
.	O
</s>
<s>
On	O
December	O
13	O
,	O
2011	O
,	O
Delicious	B-Application
continued	O
its	O
work	O
to	O
redesign	O
its	O
site	O
,	O
including	O
UI	O
changes	O
to	O
link-saving	O
page	O
and	O
Stacks	O
page	O
.	O
</s>
<s>
The	O
new	O
design	O
,	O
especially	O
for	O
the	O
Stacks	O
page	O
,	O
was	O
similar	O
to	O
the	O
design	O
of	O
another	O
popular	O
social	O
photo-sharing	O
website	O
Pinterest	B-Application
.	O
</s>
<s>
On	O
January	O
20	O
,	O
2012	O
,	O
Delicious	B-Application
added	O
more	O
social	O
features	O
into	O
its	O
Stacks	O
page	O
,	O
allowing	O
users	O
to	O
collaborate	O
on	O
the	O
same	O
Stack	O
,	O
as	O
a	O
public	O
Stack	O
or	O
a	O
private	O
Stack	O
among	O
a	O
group	O
of	O
users	O
.	O
</s>
<s>
This	O
new	O
social	O
feature	O
was	O
considered	O
as	O
a	O
good	O
step	O
against	O
competitor	O
such	O
as	O
Pinterest	B-Application
which	O
did	O
not	O
offer	O
private	O
boards	O
at	O
the	O
time	O
.	O
</s>
<s>
On	O
March	O
2	O
,	O
2012	O
,	O
Delicious	B-Application
continued	O
its	O
effort	O
to	O
be	O
more	O
social	O
,	O
by	O
providing	O
a	O
Twitter	B-Application
Connector	O
that	O
allows	O
users	O
to	O
connect	O
their	O
Twitter	B-Application
accounts	I-Application
to	O
their	O
Delicious	B-Application
accounts	O
.	O
</s>
<s>
This	O
new	O
feature	O
allowed	O
tweeted	O
links	O
to	O
be	O
automatically	O
saved	O
into	O
the	O
Delicious	B-Application
account	O
.	O
</s>
<s>
On	O
July	O
20	O
,	O
2012	O
,	O
Delicious	B-Application
reversed	O
its	O
position	O
on	O
the	O
Stacks	O
feature	O
.	O
</s>
<s>
All	O
Stacks	O
created	O
by	O
members	O
were	O
converted	O
to	O
tags	B-General_Concept
in	O
early	O
August	O
,	O
2012	O
,	O
without	O
any	O
loss	O
of	O
member	O
data	O
.	O
</s>
<s>
This	O
was	O
part	O
in	O
response	O
to	O
AVOS	O
's	O
direction	O
for	O
Delicious	B-Application
and	O
partly	O
from	O
feedback	O
from	O
Delicious	B-Application
members	O
,	O
many	O
of	O
whom	O
felt	O
that	O
Stacks	O
were	O
trying	O
to	O
emulate	O
features	O
of	O
the	O
visual	O
bookmarking	O
site	O
,	O
Pinterest	B-Application
.	O
</s>
<s>
The	O
"	O
del.icio.us	B-Application
 "	O
domain	O
name	O
was	O
a	O
well-known	O
example	O
of	O
a	O
domain	B-Application
hack	I-Application
,	O
an	O
unconventional	O
combination	O
of	O
letters	O
to	O
form	O
a	O
word	O
or	O
phrase	O
.	O
</s>
<s>
In	O
an	O
interview	O
Schachter	O
explained	O
how	O
he	O
chose	O
the	O
name	O
:	O
"	O
I	O
'd	O
registered	O
the	O
domain	O
when	O
.us	B-General_Concept
opened	O
the	O
registry	O
,	O
and	O
a	O
quick	O
test	O
showed	O
me	O
the	O
six	O
letter	O
suffixes	O
that	O
let	O
me	O
generate	O
the	O
most	O
words	O
.	O
</s>
<s>
On	O
September	O
6	O
,	O
2007	O
,	O
Schachter	O
announced	O
the	O
website	O
's	O
name	O
would	O
change	O
to	O
"	O
Delicious	B-Application
"	O
when	O
the	O
site	O
would	O
be	O
redesigned	O
.	O
</s>
<s>
In	O
January	O
2016	O
,	O
changes	O
to	O
the	O
website	O
were	O
announced	O
,	O
including	O
a	O
move	O
back	O
to	O
"	O
del.icio.us	B-Application
 "	O
.	O
</s>
<s>
On	O
April	O
24	O
,	O
2016	O
,	O
Delicious	B-Application
transitioned	O
back	O
to	O
"	O
del.icio.us	B-Application
 "	O
.	O
</s>
