Some of my favourite Nodes :

How to count rows using DBI & mysql - Performance results
SuDoKu solver
Module dependencies
Module Dependencies (Code)
Re: How to calculate development time?
my my, that's a lot of variables... JAPH obfuscation
Do Monks dream of Perl sheep ?
Solver for Sunday Times teaser 2021

Browse Module Dependencies This is the CGI App from the Module Dependencies above.

PM Nodes

super search
Best Nodes
Perl Monks User Search
Voting/Experience System
PerlMonks.org Related S‎crip‎ts
Chatterbox Clients
Number of Monks by Level
How do I moderate?
Outside Links
Nodes to consider

Modules

Data::Dumper
HTML::Mason
Storable
Algorithm::Genetic

Users

references quick reference (Re: push)
epoptai
Masem
turnstep

Code

Personal Nodelet Extractor
monitor.pl
Client / Server app

Hints

Using Data::Dumper - print Data::Dumper->Dump([\%var], ["Useful name"]), $/;
Using a Hash Slice
How do I take a slice of a hash reference?
Forcing Compile Time Checking That Subs Exist
references quick reference (Re: push)
Querying Select Number of Rows
Writing tests for a module
hashes in regexes
Use of Storable for persistent user data

Docs

Learning functional programming (Book)
Schwartzian Transform Discussion
Perl on Small Linux.