Assuming you mean Perl Best Practices, from Super Search, root nodes with titles matching "Perl Best Practices":

• Perl Best Practices for Everyone!
• Damian Conway in Portugal - Perl Best Practices training
• RFC: Perl Second-Best Practices
• Perl Best Practices PerlTidy
• Damian Conway's Perl Best Practices Reviewed in Software Development Magazine
• Perl Best Practices Slashdotted
• Perl Best Practices book: is this one a best practice or a dodgy practice?
• Perl Best Practices for naming variables
• Perl Best Practices Code Downloads?
• Perl Best Practices
• Perl Best Practices
• Beta chapter of "Perl Best Practices"

Some may not be about the book, but most probably are or include discussions about topics covered in the book.

Update: And matching "PBP" -- a common abbreviation for it:

• Class::Accessor and Damian's PBP
• PBP: Code Layout
• ExtUtils-ModuleMaker and ExtUtils-ModuleMaker-PBP