<s>
KidZui	O
was	O
a	O
web	B-Application
browser	I-Application
designed	O
for	O
children	O
developed	O
by	O
KidZui	O
,	O
Inc	O
.	O
</s>
<s>
The	O
KidZui	O
browser	B-Application
used	O
a	O
Zooming	B-Application
User	I-Application
Interface	I-Application
paradigm	O
to	O
make	O
browsing	O
easier	O
for	O
children	O
.	O
</s>
<s>
The	O
KidZui	O
browser	B-Application
did	O
not	O
access	O
the	O
open	O
Internet	O
.	O
</s>
<s>
The	O
KidZui	O
browser	B-Application
could	O
only	O
access	O
URLs	O
in	O
the	O
approved	O
database	O
.	O
</s>
<s>
Children	O
built	O
avatars	B-Application
called	O
Zuis	B-Application
to	O
represent	O
themselves	O
online	O
.	O
</s>
<s>
They	O
earned	O
points	O
for	O
web	O
browsing	O
and	O
used	O
points	O
to	O
gain	O
levels	O
and	O
buy	O
clothes	O
and	O
accessories	O
for	O
their	O
Zuis	B-Application
.	O
</s>
<s>
To	O
add	O
a	O
friend	O
online	O
,	O
children	O
needed	O
to	O
know	O
the	O
friends	O
Zui	B-Application
name	O
.	O
</s>
<s>
There	O
was	O
no	O
online	O
directory	O
of	O
Zui	B-Application
names	O
,	O
so	O
children	O
needed	O
to	O
get	O
their	O
friends	O
Zui	B-Application
names	O
offline	O
in	O
order	O
to	O
add	O
them	O
.	O
</s>
<s>
Friends	O
also	O
needed	O
to	O
be	O
approved	O
by	O
parents	O
before	O
they	O
become	O
available	O
in	O
the	O
browser	B-Application
.	O
</s>
<s>
The	O
KidZui	O
browser	B-Application
and	O
basic	O
reports	O
for	O
parents	O
are	O
free	O
.	O
</s>
<s>
Membership	O
gives	O
kids	O
additional	O
features	O
like	O
more	O
available	O
clothing	O
and	O
accessories	O
for	O
Zuis	B-Application
,	O
more	O
background	O
and	O
themes	O
,	O
and	O
the	O
ability	O
to	O
get	O
to	O
higher	O
levels	O
with	O
points	O
.	O
</s>
<s>
Membership	O
gives	O
parents	O
more	O
reporting	O
capabilities	O
to	O
track	O
their	O
children	O
's	O
online	O
activity	O
,	O
and	O
more	O
ways	O
to	O
customize	O
the	O
KidZui	O
browser	B-Application
for	O
their	O
children	O
.	O
</s>
<s>
Rather	O
than	O
solely	O
using	O
filters	B-Protocol
,	O
KidZui	O
trained	O
and	O
enlisted	O
parents	O
and	O
teachers	O
to	O
search	O
out	O
content	O
that	O
is	O
appropriate	O
for	O
children	O
even	O
if	O
it	O
was	O
not	O
designed	O
expressly	O
for	O
children	O
.	O
</s>
<s>
Vignisson	O
was	O
frustrated	O
by	O
the	O
approach	O
of	O
existing	O
technologies	O
that	O
were	O
available	O
at	O
the	O
time	O
;	O
online	O
filters	B-Protocol
helped	O
keep	O
out	O
dangerous	O
content	O
,	O
but	O
could	O
only	O
be	O
used	O
in	O
conjunction	O
with	O
adult	O
browsers	B-Application
,	O
which	O
are	O
hard	O
for	O
children	O
to	O
use	O
.	O
</s>
<s>
Existing	O
children	O
's	O
browsers	B-Application
were	O
easier	O
to	O
use	O
but	O
had	O
access	O
to	O
very	O
small	O
amounts	O
of	O
content	O
.	O
</s>
<s>
Vignisson	O
,	O
Boro	O
,	O
and	O
Broadhead	O
set	O
out	O
to	O
build	O
an	O
easy-to-use	O
children	O
's	O
browser	B-Application
with	O
access	O
to	O
a	O
large	O
and	O
diverse	O
set	O
of	O
online	O
content	O
and	O
activities	O
.	O
</s>
<s>
The	O
membership	O
program	O
unlocks	O
additional	O
features	O
in	O
the	O
kids’	O
browser	B-Application
and	O
comes	O
with	O
more	O
advanced	O
reporting	O
features	O
for	O
parents	O
.	O
</s>
<s>
ZuiTube	B-Protocol
was	O
the	O
online	O
video	O
destination	O
that	O
used	O
KidZui	O
's	O
catalogue	O
of	O
kid-friendly	O
video	O
content	O
.	O
</s>
<s>
ZuiTube	B-Protocol
used	O
a	O
user	B-Application
interface	I-Application
designed	O
for	O
children	O
.	O
</s>
<s>
ZuiTube	B-Protocol
provided	O
a	O
"	O
Play	O
All	O
"	O
mode	O
that	O
allowed	O
kids	O
to	O
watch	O
all	O
videos	O
within	O
a	O
specific	O
channel	O
without	O
interruption	O
,	O
as	O
well	O
as	O
an	O
"	O
auto	O
complete	O
"	O
search	O
feature	O
with	O
smart-type	O
that	O
optimized	O
results	O
based	O
on	O
popularity	O
,	O
or	O
"	O
Kid	O
Rank.	O
"	O
</s>
<s>
ZuiTube	B-Protocol
also	O
offered	O
KidZui-user-generated	O
video	O
channels	O
as	O
an	O
opportunity	O
for	O
kids	O
to	O
both	O
enjoy	O
and	O
express	O
themselves	O
within	O
KidZui	O
's	O
community	O
of	O
users	O
.	O
</s>
<s>
ZuiTube.com	O
launched	O
in	O
August	O
2009	O
.	O
</s>
<s>
The	O
website	O
launch	O
was	O
followed	O
by	O
the	O
release	O
of	O
the	O
ZuiTube	B-Protocol
App	B-Application
for	O
iPhone	B-Device
and	O
iPod	B-Device
Touch	I-Device
.	O
</s>
<s>
As	O
of	O
July	O
2016	O
,	O
the	O
domain	O
name	O
is	O
no	O
longer	O
registered	O
and	O
the	O
app	B-Application
has	O
been	O
pulled	O
from	O
the	O
iOS	B-Application
app	I-Application
store	I-Application
.	O
</s>
<s>
KidZui	O
included	O
advertisements	O
to	O
children	O
in	O
their	O
browser	B-Application
,	O
mostly	O
based	O
on	O
sponsored	O
partnerships	O
with	O
Under	O
Armour	O
,	O
Mattel	O
,	O
and	O
Comcast	O
.	O
</s>
<s>
KidZui	O
used	O
filters	B-Protocol
to	O
pre-screen	O
content	O
.	O
</s>
<s>
After	O
screening	O
by	O
filters	B-Protocol
,	O
the	O
content	O
was	O
reviewed	O
by	O
paid	O
teachers	O
and	O
parents	O
using	O
a	O
set	O
of	O
content	O
guidelines	O
.	O
</s>
<s>
KidZui	O
used	O
a	O
Zooming	B-Application
User	I-Application
Interface	I-Application
paradigm	O
where	O
search	O
results	O
are	O
displayed	O
visually	O
at	O
a	O
smaller	O
scale	O
.	O
</s>
