The best way to learn any language: Write something in it! Think of a particular webapp you want to build, and do it (referring to a book/CPAN/anything else.

The best way to learn any language: Write something in it! Think of a particular webapp you want to build, and do it (referring to a book/CPAN/anything else. Perldoc is useful to learn specific syntax. The CPAN modules are pretty useful, especially DBI (databases) and Mechanize (automate website interactions).