Applications that can be developed using Perl

What applications can be developed using Perl (considering the strengths of the language)? Can anyone give me a few examples?

forums
shopping carts
guestbooks
hit counters

Entire e-commerce sites

much much more...

go here and it will give you an example or few

http://www.hotscripts.com/Perl/Scripts_and_Programs/

I'm surprised nobody's mentioned that Perl can be used for fully-fledged programs of any kind you want. However, this is usually used on Unix systems because the Tk library looks like X :D

On windows, I've seen a few "net admin" type scripts written in Perl.

here are some more examples:

http://www.worldwidemart.com/scripts/