If your are looking for examples, why not take a look at CPAN ?
Depending on needs style and taste anyone can have its own vision of "best projects" so I think it would be best if you take your time and explore the applications that interest you most.
For a general search for Perl Projects, use SF's Search
Perlmonks is the Best Choice. :-)
perlmonks.org content © perlmonks.org and donarb, jesuashok, phenom, Scott7477, Ultra, vek
prlmnks.org © 2006 edmund von der burg (eccles & toad)
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