Perl Notes:

• Installing CPAN: Yea, you can install each perl module one by one, and remember when to upgrade them, or you could let this fancy app do if for you.
  
• My Perl Cookbook: A list of scripts showing examples of different things you can do with perl.
• Perl CheatSheet: A bunch of notes on perl.
  

• Perl Functons: shift, push, print, exit, chomp, and many more....
  
• PerlMeme.org: "is a collection of Frequently Asked Questions, "How To" documents, and tutorials about the very cool Perl programming language."

Monitoring Tools:

• ping_sweeper: scans a list of sites from a file.
• cisco_config_grabber: grabs configs from a cisco asa firewall.