<s>
There	O
are	O
many	O
types	B-Application
of	I-Application
e-commerce	I-Application
models	O
,	O
based	O
on	O
market	O
segmentation	O
,	O
that	O
can	O
be	O
used	O
to	O
conducted	O
business	O
online	O
.	O
</s>
<s>
B2B	B-Application
e-commerce	I-Application
refers	O
to	O
the	O
sale	O
of	O
goods	O
or	O
services	O
between	O
businesses	O
via	O
an	O
online	O
sales	O
portal	O
.	O
</s>
<s>
The	O
advantages	O
of	O
B2B	B-Application
e-commerce	I-Application
include	O
:	O
</s>
<s>
The	O
disadvantages	O
of	O
B2B	B-Application
e-commerce	I-Application
include	O
:	O
</s>
<s>
It	O
deals	O
in	O
electronic	B-Application
business	I-Application
relationships	O
between	O
businesses	O
—	O
both	O
producers	O
and	O
service	O
providers	O
—	O
with	O
end	O
consumers	O
.	O
</s>
<s>
The	O
decision-making	O
process	O
for	O
a	O
B2C	O
purchase	O
is	O
much	O
shorter	O
than	O
a	O
business-to-business	B-Application
(	O
B2B	O
)	O
purchase	O
,	O
especially	O
for	O
items	O
that	O
have	O
a	O
lower	O
value	O
,	O
thus	O
having	O
a	O
shorter	O
sales	O
cycle	O
.	O
</s>
<s>
YouTube	B-General_Concept
reviews	O
may	O
be	O
incentivized	O
by	O
free	O
products	O
or	O
direct	O
payment	O
.	O
</s>
<s>
Examples	O
of	O
C2C	O
include	O
Craigslist	O
and	O
eBay	B-Application
,	O
who	O
pioneered	O
this	O
model	O
in	O
the	O
early	O
days	O
of	O
the	O
internet	O
.	O
</s>
<s>
Business-to-administration	B-Application
(	O
B2A	O
)	O
,	O
also	O
known	O
as	O
business-to-government	B-Application
(	O
B2G	O
)	O
,	O
refers	O
to	O
all	O
transactions	O
between	O
companies	O
and	O
public	O
administrations	O
or	O
government	O
agencies	O
.	O
</s>
