The Perl Journal is the first and only magazine dedicated to Perl. It is
published (on paper, not on line) quarterly by Jon Orwant (orwant@tpj.com), editor. Subscription
information is at http://tpj.com or via email
to subscriptions@tpj.com.
Beyond this, two other magazines that frequently carry high-quality
articles on Perl are Web Techniques (see http://www.webtechniques.com/)
and Unix Review (http://www.unixreview.com/).