Patches for Pine by Ryan Barret
- A collection of patches to enhance Pine.
- http://snarfed.org/space/software#patches

Help and Patches for Pine
- A collection of patches for Pine. It includes help for Pine and links to more sources of patches in the web.
- http://staff.washington.edu/chappa/pine/

Alpine Information Center
- This project is the continuation of the Pine project under a new license.
- http://www.washington.edu/alpine/

Pine UTF-8 FAQ
- Questions and answers on an unofficial patch for Pine to allow it to correctly send and read UTF-8 encoded mail.
- http://www.suse.de/~bk/pine/FAQ.html

Pine on Mac OS X
- Notes on building and running pine under Mac OS X.
- http://www.madboa.com/geek/pine-macosx/

PGPenvelope
- A filter that allows you to use Pine in conjunction with GPG.
- http://pgpenvelope.sourceforge.net/

Pine Privacy Guard
- A filter written in Perl that allows you to use Pine and GPG to sign, encrypt and decrypt messages.
- http://quantumlab.net/pine_privacy_guard/

Gopi Sundaram's comp.mail.pine FAQ
- A collection of answers to questions that appear frequently in comp.mail.pine.
- http://www.zrox.net/Mail/Pine/

OpenSSL Configuration for Pine
- Help on how to configure Pine to be used with OpenSSL.
- http://www.madboa.com/geek/pine-ssl/

Pine for OpenVMS
- A port of Pine for OpenVMS.
- http://server11.infn.it/pub/mailing/OpenVMS/pinevms.html

Peter Hanecak's PGP4Pine
- Supports version 2.6.x, 5.x and 6.5.x and GnuPG version 1.0.0 and later. Source code and RPM packages are available also.
- http://www.megaloman.com/~hany/software/pinepgp/index_body.html

The xPine Email System
- A graphical (X11) interface for the Unix version of Pine. Still under test.
- http://xpine.sourceforge.net

Nancy McGough's Page on Pine
- Information about configuring Pine. It includes a comprehensive list of links to more resources about Pine.
- http://www.ii.com/internet/messaging/pine/

Pine for OS/2
- A port of Pine for IBM's OS/2.
- http://www.zeta.org.au/~nps/software/pine/en/index.html

Pine Information Center
- Official web page about this mail program by Computing and Communications at the University of Washington.
- http://www.washington.edu/pine/

Peter Daum's PGP4Pine
- A perl script to integrate PGP, up to version 2.63i, into Pine.
- http://user.cs.tu-berlin.de/~gator/pgp4pine/