<s>
WebFetch	B-Language
is	O
a	O
set	O
of	O
Perl	O
5	O
modules	O
written	O
by	O
Ian	O
Kluft	O
from	O
1998	O
through	O
2009	O
that	O
provides	O
a	O
framework	O
for	O
retrieving	O
information	O
feeds	O
from	O
the	O
Web	O
,	O
or	O
posting	O
a	O
feed	O
on	O
a	O
web	O
site	O
.	O
</s>
<s>
It	O
is	O
intended	O
to	O
be	O
run	O
on	O
a	O
Unix	B-Application
or	O
Linux	B-Application
server	O
automatically	O
,	O
such	O
as	O
from	O
cron	B-General_Concept
.	O
</s>
<s>
It	O
is	O
Open	B-Application
Source	I-Application
software	I-Application
,	O
licensed	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
WebFetch	B-Language
can	O
collect	O
various	O
types	O
of	O
inputs	O
via	O
plugin	O
modules	O
and	O
send	O
or	O
store	O
them	O
to	O
various	O
outputs	O
also	O
via	O
plugin	O
modules	O
.	O
</s>
<s>
Inputs	O
include	O
RSS	O
,	O
Atom	B-Application
,	O
local	O
news	O
feed	O
files	O
,	O
and	O
perl	O
data	O
structures	O
.	O
</s>
<s>
Outputs	O
include	O
perl	O
data	O
structures	O
,	O
the	O
Template	B-Language
Toolkit	I-Language
and	O
pages	O
in	O
TWiki	B-Language
systems	O
.	O
</s>
<s>
Before	O
there	O
were	O
RSS	O
and	O
Atom	B-Application
aggregation	O
,	O
WebFetch	B-Language
started	O
with	O
modules	O
to	O
retrieve	O
news	O
in	O
ad	O
hoc	O
feed	O
formats	O
of	O
various	O
web	O
sites	O
,	O
including	O
Slashdot	O
.	O
</s>
<s>
WebFetch	B-Language
is	O
available	O
from	O
the	O
Comprehensive	B-Language
Perl	I-Language
Archive	I-Language
Network	I-Language
.	O
</s>
<s>
The	O
following	O
Perl	O
modules	O
were	O
based	O
on	O
ad	O
hoc	O
news	O
formats	O
from	O
before	O
RSS	O
,	O
and	O
in	O
some	O
cases	O
web	B-Application
scraping	I-Application
.	O
</s>
<s>
They	O
used	O
to	O
be	O
provided	O
with	O
WebFetch	B-Language
in	O
the	O
past	O
,	O
but	O
were	O
deprecated	O
and	O
removed	O
.	O
</s>
