A brief list of my favourites:

• The Perl Review
• An index to The Perl Journal articles on Dr. Dobbs
• Linux Magazin (Need to register)
• The Perl Journal Perl columns! by Randal
• The Linux Magazine Perl columns! by Randal
• The Perl Journal (Archive)

And for german speaking monks:

• $foo - Perl-Magazin (Workshops, Module, News und vieles mehr)
• Michael Schilli at Linux-Magazin

Thomas