Over at www.perl.com, Nick Temple has an article about Writing GUI Applications in Perl/Tk, using the example of a Point-of-Sale application, complete with credit card processing. Terrance Brannon has written a piece about using DBIx::Recordset as an alternative to DBI.
Kirrily "Skud" Robert writes about the e-smith Server and Gateway, a Linux distribution designed for small to medium enterprises to simplify the process of setting up Internet and file-sharing services. And Brian Ingerson's written Pathologically Polluting Perl, using Inline to embed C inside Perl.
