Royce's PerlLinks
Core docs
perl
perlLoL
perlXStut
perlapio
perlbook
perlbot
perlcall
perldata
perldebug
perl54delta
perldelta
perldiag
perldsc
perlembed
perlfaq1
perlfaq2
perlfaq3
perlfaq4
perlfaq5
perlfaq6
perlfaq7
perlfaq8
perlfaq9
perlfaq
perlform
perlfunc
perlguts
perlhist
perlipc
perllocale
perlmod
perlmodinstall
perlobj
perlmodlib
perlop
perlopentut*
perlpod
perlport
perlre
perlref
perlrun
perlsec
perlstyle
perlsub
perlsyn
perltie
perltoc
perltoot
perltrap
perlvar
perlxs

Links & FAQs
perl.com/pub
perl.about.com
rexswain.com
rocketaware
CPAN FAQ
softpanorama
Schwartz columns
possibility
nathan's perlref
perldoc.com

Modules
Expect
IO::Select
IO::Pipe
Net::POP3
Storable
Data::Dumper
POSIX (WNOHANG)

 Parallelism
fork lots of children
Schwartz fork
Schwartz lint
Sage Network Wiles
general info
Signals
banga
perl-loop list

Daemonizing
mu.edu fork.pl
fork a daemon

 DB
DB_File / readme
MJD DBI / DBI FAQ
DBI Chapter 4
DBD::File
usenix paper
BerkeleyDB.pm
persistence
symbolstone index
MLDBM
AnyDBM_File
unleashed ch18
DB_FileLock

 General
temp files
syslogging
perladm logging
programming ref
swatch
Slash style guide
JC's style guide
perltest
PLEAC ref

Google
Functions: -X A abs accept alarm atan2 B bind binmode bless C caller chdir chmod chomp chop chown chr chroot close closedir connect continue cos crypt D dbmclose dbmopen defined delete die do dump E each endgrent endhostent endnetent endprotoent endpwent endservent eof eval exec exists exit exp F fcntl fileno flock fork format formline G getc getgrent getgrgid getgrnam gethostbyaddr gethostbyname gethostent getlogin getnetbyaddr getnetbyname getnetent getpeername getpgrp getppid getpriority getprotobyname getprotobynumber getprotoent getpwent getpwnam getpwuid getservbyname getservbyport getservent getsockname getsockopt glob gmtime goto grep H hex I import int ioctl J join K keys kill L last lc lcfirst length link listen local localtime log lstat M m// map mkdir msgctl msgget msgrcv msgsnd my next no oct open opendir ord P pack package pipe pop pos print printf prototype push Q q/STRING/ qq/STRING/ quotemeta qw/STRING/ qx/STRING/ R rand read readdir readlink recv redo ref rename require reset return reverse rewinddir rindex rmdir S s/// scalar seek seekdir select semctl semget semop send setgrent sethostent setnetent setpgrp setpriority setprotoent setpwent setservent setsockopt shift shmctl shmget shmread shmwrite shutdown sin sleep socket socketpair sort splice split sprintf sqrt srand stat study sub substr symlink syscall sysopen* sysread system syswrite T tell telldir tie time times tr/// truncate U uc ucfirst umask undef unlink unpack unshift untie use utime V values vec W wait waitpid wantarray warn write Y y///
* Not in the standard documentation.
http://www.alaska.net/~royce/perlref.html