<s>
Information	B-General_Concept
foraging	I-General_Concept
is	O
a	O
theory	O
that	O
applies	O
the	O
ideas	O
from	O
optimal	O
foraging	O
theory	O
to	O
understand	O
how	O
human	O
users	O
search	O
for	O
information	O
.	O
</s>
<s>
The	O
most	O
important	O
concept	O
in	O
the	O
information	B-General_Concept
foraging	I-General_Concept
theory	I-General_Concept
is	O
information	O
scent	O
.	O
</s>
<s>
Some	O
tendencies	O
in	O
the	O
behaviour	O
of	O
web	O
users	O
are	O
easily	O
understood	O
from	O
the	O
information	B-General_Concept
foraging	I-General_Concept
theory	I-General_Concept
standpoint	O
.	O
</s>
<s>
Attempts	O
have	O
been	O
made	O
to	O
develop	O
computational	O
cognitive	O
models	O
to	O
characterize	O
information	B-General_Concept
foraging	I-General_Concept
behavior	O
on	O
the	O
Web	O
.	O
</s>
<s>
Recently	O
these	O
information	B-General_Concept
foraging	I-General_Concept
models	O
have	O
been	O
extended	O
to	O
explain	O
social	O
information	O
behavior	O
.	O
</s>
<s>
See	O
also	O
models	B-Architecture
of	I-Architecture
collaborative	I-Architecture
tagging	I-Architecture
.	O
</s>
