<s>
An	O
image	B-Algorithm
hosting	I-Algorithm
service	I-Algorithm
allows	O
individuals	O
to	O
upload	O
images	O
to	O
an	O
Internet	O
website	O
.	O
</s>
<s>
The	O
image	B-Algorithm
host	I-Algorithm
will	O
then	O
store	O
the	O
image	O
onto	O
its	O
server	B-Application
,	O
and	O
show	O
the	O
individual	O
different	O
types	O
of	O
code	O
to	O
allow	O
others	O
to	O
view	O
that	O
image	O
.	O
</s>
<s>
Some	O
of	O
the	O
best	O
known	O
examples	O
are	O
Flickr	B-Algorithm
,	O
Imgur	B-Algorithm
,	O
iMGSRC	O
and	O
Photobucket	B-Algorithm
,	O
each	O
catering	O
for	O
different	O
purposes	O
.	O
</s>
<s>
Typically	O
image	B-Algorithm
hosting	I-Algorithm
websites	O
provide	O
an	O
upload	O
interface	O
;	O
a	O
form	O
in	O
which	O
the	O
uploader	O
specifies	O
the	O
location	O
of	O
an	O
image	O
file	O
on	O
their	O
local	O
computer	O
file	O
system	O
.	O
</s>
<s>
After	O
pressing	O
a	O
"	O
Submit	O
"	O
button	O
,	O
the	O
file	O
is	O
uploaded	O
to	O
the	O
image	B-Algorithm
host	I-Algorithm
's	O
server	B-Application
.	O
</s>
<s>
Some	O
image	B-Algorithm
hosts	I-Algorithm
allow	O
the	O
uploader	O
to	O
specify	O
multiple	O
files	O
at	O
once	O
using	O
this	O
form	O
,	O
or	O
the	O
ability	O
to	O
upload	O
one	O
ZIP	B-General_Concept
archive	I-General_Concept
containing	O
multiple	O
images	O
.	O
</s>
<s>
Additionally	O
,	O
some	O
hosts	O
allow	O
FTP	B-Protocol
access	I-Protocol
,	O
where	O
single	O
or	O
multiple	O
files	O
can	O
be	O
uploaded	O
in	O
one	O
session	O
using	O
FTP	B-Protocol
software	O
or	O
an	O
FTP-capable	O
browser	O
.	O
</s>
<s>
After	O
this	O
process	O
,	O
the	O
image	O
is	O
hosted	O
on	O
the	O
server	B-Application
.	O
</s>
<s>
Usually	O
,	O
the	O
image	B-Algorithm
host	I-Algorithm
will	O
put	O
restrictions	O
on	O
the	O
maximum	O
image	O
size	O
allowed	O
,	O
or	O
the	O
maximum	O
space	O
or	O
bandwidth	O
allowed	O
per	O
user	O
.	O
</s>
<s>
Image	B-Algorithm
hosts	I-Algorithm
also	O
allow	O
tools	O
such	O
as	O
the	O
ability	O
to	O
create	O
photoblogs/galleries	O
with	O
your	O
images	O
,	O
or	O
add	O
them	O
to	O
a	O
slide	O
show	O
for	O
easier	O
viewing	O
.	O
</s>
<s>
A	O
Flickr	B-Algorithm
tool	O
allows	O
one	O
to	O
upload	O
photos	O
using	O
a	O
camera	O
phone	O
with	O
email	O
capability	O
.	O
</s>
<s>
When	O
an	O
image	O
file	O
is	O
accessed	O
,	O
the	O
image	B-Algorithm
host	I-Algorithm
is	O
capable	O
of	O
logging	O
the	O
date	O
and	O
the	O
general	O
numeric	O
internet	B-Protocol
address	I-Protocol
of	O
the	O
request	O
.	O
</s>
<s>
The	O
unique	O
URL	O
is	O
used	O
as	O
a	O
tracking	O
ID	O
,	O
so	O
that	O
the	O
image	B-Algorithm
host	I-Algorithm
can	O
identify	O
exactly	O
what	O
message	O
intended	O
for	O
what	O
specific	O
recipient	O
has	O
been	O
viewed	O
,	O
in	O
addition	O
to	O
the	O
date	O
and	O
host	O
accessing	O
the	O
image	O
.	O
</s>
<s>
Many	O
image	B-Algorithm
hosts	I-Algorithm
are	O
free	O
,	O
some	O
do	O
not	O
even	O
require	O
registration	O
.	O
</s>
<s>
Of	O
the	O
free	O
image	B-Algorithm
hosts	I-Algorithm
,	O
the	O
vast	O
majority	O
are	O
supported	O
by	O
advertisements	O
,	O
mostly	O
on	O
their	O
top	O
pages	O
,	O
thumbnail	O
pages	O
,	O
or	O
"	O
not	O
found	O
"	O
pages	O
.	O
</s>
<s>
Some	O
free	O
hosts	O
have	O
optional	O
paid	O
image	B-Algorithm
hosting	I-Algorithm
functions	O
,	O
while	O
other	O
hosts	O
offer	O
only	O
paid	O
services	O
.	O
</s>
<s>
Paid	O
services	O
often	O
allow	O
users	O
to	O
have	O
password	O
protected	O
photo	O
albums	O
,	O
customizable	O
skins	B-Application
,	O
and	O
customized	O
subdomains	B-Protocol
.	O
</s>
<s>
Before	O
the	O
development	O
of	O
image	B-Algorithm
hosting	I-Algorithm
services	I-Algorithm
,	O
the	O
display	O
and	O
exchange	O
of	O
images	O
on	O
the	O
early	O
public	O
Internet	O
of	O
the	O
1980s	O
–	O
1990s	O
was	O
a	O
laborious	O
and	O
complex	O
process	O
.	O
</s>
<s>
Expertise	O
was	O
needed	O
to	O
set	O
up	O
a	O
private	O
file	O
server	B-Application
,	O
to	O
connect	O
it	O
to	O
the	O
Internet	O
,	O
and	O
paying	O
for	O
the	O
potentially	O
expensive	O
dedicated	O
Internet	O
connection	O
.	O
</s>
<s>
Uploading	O
of	O
images	O
was	O
accomplished	O
with	O
command-line	B-Application
tools	I-Application
like	O
FTP	B-Protocol
,	O
or	O
uploading	O
images	O
using	O
slow	O
14.4	O
to	O
33.6	O
kilobit	O
dialup	O
modem	O
connections	O
and	O
terminal	O
protocols	O
like	O
XMODEM	B-Protocol
to	O
the	O
server	B-Application
storage	O
.	O
</s>
<s>
Before	O
the	O
Web	O
was	O
developed	O
,	O
images	O
would	O
primarily	O
be	O
downloaded	O
manually	O
from	O
file	O
servers	O
or	O
from	O
binary	O
newsgroups	O
on	O
Usenet	B-Application
,	O
and	O
displayed	O
with	O
a	O
separate	O
image	O
viewer	O
.	O
</s>
<s>
One	O
of	O
the	O
primary	O
new	O
features	O
of	O
the	O
early	O
and	O
developing	O
Web	O
that	O
enabled	O
the	O
easy	O
sharing	O
of	O
images	O
and	O
other	O
data	O
,	O
was	O
the	O
concept	O
of	O
being	O
able	O
to	O
upload	O
or	O
HTTP	B-Protocol
POST	I-Protocol
a	O
file	O
via	O
the	O
web	O
browser	O
to	O
the	O
remote	O
server	B-Application
.	O
</s>
<s>
This	O
alone	O
helped	O
to	O
eliminate	O
all	O
the	O
complex	O
steps	O
of	O
needing	O
to	O
understand	O
command	B-Application
line	I-Application
tools	I-Application
like	O
FTP	B-Protocol
or	O
uploading	O
via	O
a	O
modem	O
terminal	O
.	O
</s>
<s>
The	O
early	O
and	O
developing	O
image	B-Algorithm
sharing	I-Algorithm
services	O
eventually	O
added	O
the	O
ability	O
to	O
automatically	O
resize	O
and	O
recompress	O
uploaded	O
images	O
into	O
standardized	O
sizes	O
and	O
formats	O
,	O
for	O
maximum	O
browser	O
compatibility	O
and	O
minimizing	O
of	O
bandwidth	O
usage	O
for	O
unnecessarily	O
large	O
images	O
.	O
</s>
<s>
The	O
provision	O
for	O
early	O
image	B-Algorithm
sharing	I-Algorithm
services	O
to	O
automatically	O
create	O
sharing	O
links	O
also	O
reduced	O
the	O
need	O
for	O
technical	O
knowledge	O
of	O
where	O
the	O
image	O
was	O
uploaded	O
.	O
</s>
