[Links] Collection Managers

[Online Service]
Listal - A web based DVD, music, game and book collection manager
http://www.listal.com/

LibraryThing
http://www.librarything.com/index.php

My search experience:
I just forgot the Listal web site at first when my friend send me the link of Delicious Library, a collection manager software for Mac. And then I try to find out where I had seen Listal before, I lookup the blogs that I had read recently but I got nothing.
Then I try to search it in Google using keywords like "books, dvd, collection manager", but I do not see Listal at first. But I see the LibraryThing, it's a similar service. So I just search LibraryThing in Google Directory Search, I found it is belong to the category "Reference > Libraries > Library and Information Science > Software > Collection Managers", and Listal is just one of them, too.

[Software]
Delicious Library(Mac)
http://www.delicious-monster.com/

BookCAT (PC)
http://www.fnprg.com/bookcat/index.html

Readerware (Mac/PC)
http://www.readerware.com/

Collectorz.com (Mac/PC)
http://www.collectorz.com/

Booxter (Mac)
http://www.deepprose.com/

Tellico(KDE)
http://periapsis.org/tellico/

Alexandria(GNOME)
http://alexandria.rubyforge.org/

mCatalog(GNOME)
http://www.mcatalog.net/

Thokbook
http://thokbook.sourceforge.net/

Ref:
Google Directory Result
Collectionz
Simple library software?

[Perl] e-book and tutorial for Perl

Beginning Perl
http://learn.perl.org/library/beginning_perl/

Perl 5 by Example
http://www.codebits.com/p5be/

Perl e-Book:
http://www.freeprogrammingresources.com/perlbook.html

Introduction to Perl (from University of Missouri - Columbia):
http://www.cclabs.missouri.edu/things/instruction/perl/perlcourse.html

Perl Tutorial:
http://www.comp.leeds.ac.uk/Perl/start.html