Software and Documentation

Beautifiers and Pretty Printers
Best Practical
Codewars
Crafting Interpreters
Designing an Authentication System: a Dialogue in Four Scenes
Essays on programming I think about a lot
Flight Gear Flight Simulator
Free UML, BPMN and Agile Tutorials - Learn Step-by-Step
GitHub - EbookFoundation/free-programming-books: :books: Freely available programming books
Gitea git repository server
Gnu Documentation
How to Create Your Own SSL Certificate Authority for Local HTTPS Development
Internet RFC/STD/FYI/BCP Archives
Julia Evans
LFTP - sophisticated file transfer program
Life with qmail
Manx - Catalog of Online Computer Manuals
Mathematics for Programmers
Meld
Multicast over TCP/IP HOWTO
MySQL Documentation
MythTV
Writing Programs with NCURSES
NCURSES Programming HOWTO
The Next 700 Programming Languages
OpenVPN project
PDP-11 - Introduction
PDP-11 Home Page at metalab.unc.edu
Parsing Expressions by Recursive Descent
Producing Open Source Software
Protocol Buffers - Google Code
RT Wiki
RealPlayer Home Page
SANE - Scanner Access Now Easy
SSH: Convert OpenSSH to SSH2 and vise versa
Schedules Direct - TV listings for MythTV
Stack Overflow - Q&A
The Graphics File Format Page (2D specs)
UK Mirror Service: sites/www.bitsavers.org/bits/DEC
UNIXguide.net AIX, FreeBSD, HP-UX, Linux, Solaris & Tru64
Unicode Character Code Charts
Ventoy
Version Control with Subversion
Vintage BASIC - Games
Welcome to the Linux Graphics Driver from Intel site | Graphics
Winsock Programmer's FAQ
XMCD Home Page
Xterm Control Sequences
Best of ZSH Tips
Zsh unix shell
chubin/cheat.sh : the only cheat sheet you need
hacker-laws
perlgov - Perl Rules of Governance - Perldoc Browser
qmail-spp - Home

Android

Android Developers
Android Development
Introduction to Android Development

BSD

DaemonForums - BSD forum
NetBSD/alpha
NetBSD/vax
OpenBSD
OpenBSD Frequently Asked Questions
OpenBSD Handbook
OpenBSD Porter's Handbook
OpenBSD Ports: Working with Ports
OpenBSD ports
OpenBSD/alpha
OpenBSD/vax
The NetBSD Project

C/C++/OO

Alex's Software
An Interview with A. Stepanov for Edizioni Infomedia srl
Bjarne Stroustrup
Boost C++ Libraries
C++ Archive
C++ in the Real World
C++17 in detail (book)
CppCon | The C Conference
Dr. Charles R. Severance Home Page
Fluent C - Jonathan Boccara's blog
GitHub - cnjinhao/nana: a modern C GUI library
GitHub - qPCR4vir/nana-docs: A Nana offline doxygen dodocumentation project
Guru of the Week
Home · qPCR4vir/nana-docs Wiki · GitHub
Learn Contemporary C | Concise&Visual Examples | hacking C
Modern C++ Tutorial: C++ 11/14/17/20 On the Fly
Nana C Library
STLport Home Page
The ADAPTIVE Communication Environment (ACE)
The Boost C++ Libraries
cplusplus.com - The C Resources Network
cppreference.com

CD-R/RW

CD-R FAQ

CMake

CMake Reference Documentation
CMake line by line - Creating a library | Dominik Berner
CMake line by line - creating a header-only library | Dominik Berner

Flex

6800 instruction set
FLEX 2.0 For SWTPC 6800
FLEX Softwae Archive
GitHub - jefftranter/6800: Code related to the Motorola 6800 microprocessor.
GitHub - jhallen/exorsim: Motorola M6800 (6800) Exorciser / SWTPC emulator
MC6800 Instruction Set Summary

Home Networking

Asuswrt-Merlin
Dong Knows Tech
OpenWrt Project
Router Security

Java

ANTLR
Apache Ant
Apache Maven
Getting Started with JavaFX
IntelliJ IDEA
Java Tutorials - Online Training and Tutorials from Sun
NetBeans Docs & Support
OpenJDK
OpenORB On SourceForge
Programming tutorials, problems, solutions. Always with code.
Sun's Java Home Page
The Jakarta Project
Tritonus: Open Source Java Sound

LDAP

LDAP HOWTO
LDAP Roadmap
OpenLDAP Home Page
PADL Software Pty Ltd - Documentation and Open Source Tools

Mac OSX

Homebrew Package Manager
MacPorts Guide

Multimedia

Audacity Audio Editor and Recorder
CD Paranoia audio CD digital audio extraction application
GramoFile Home Page
Hydrogen advanced drum machine for GNU/Linux
Planet CCRMA at home
Rosegarden: music software for Linux
Strawberry Music Player
TAP-plugins
The CAPS Audio Plugin Suite
ardour | the new digital audio workstation

OpenVMS

The DEC Connection - A premier interactive networking organization for former Digital Equipment Corporation employees
DECUServe on-line
Documentation -- VMS Software, Inc.
HP Communities OpenVMS Community Forum
HoffmanLabs
List of Products from VMS Software, Inc.
OpenVMS Freeware
VMS Software, Inc.
VMS/RMS INTERNAL DATA STRUCTURES
VT100.net: VT330/VT340 Programmer Reference Manual
WASD - The only Web environment implemented expressly for VMS

Oracle

ArsDigita Systems Journal: Fault Tolerant Oracle Installation
One-Page Oracle API, Oracle Call Interface Template Library (OTL), Version 2.0.0

Perl

CPAN Searches
CPAN Testers
Comprehensive Perl Archive Network (CPAN)
FormBuilder Perl CGI Form Builder CPAN module
Higher-Order Perl
Mojolicious - Perl real-time web framework
PAUSE Documentation
Perl Authors Upload Server (PAUSE)
Perl DBI
Perl Documentation
Perl In 20 Pages
Perl Infrequently Asked Questions List
Perl Maven - for people who want to get the most out of programming in Perl
Perl Monks
Perl Reference Guide
Perlbrew
The Perl Home Page
ActivePerl 5.8 - Online Docs : Tk
TkDocs Home
VMS Perl | Perl on OpenVMS
WAIT - The Great CPAN Search Engine

PostgreSQL

Cygwin allows PostgreSQL to run on Windows
Documentation
General Bits - mailinglist summaries
JDBC Driver
Lesser Known PostgreSQL Features | Haki Benita
ODBC Driver
PostgreSQL
PostgreSQL, Inc.
Streaming Replication - PostgreSQL wiki
The Internals of PostgreSQL

Python

An Intro to logging
Django Web Framework
Practical Python Programming - a course by @dabeaz
PyCoder's Weekly Issue Archive
PyCoder's Weekly | A Weekly Python E-Mail Newsletter
Python 2 to 3 conversion
Python 3 Documentation
Python PostgreSQL tutorial with psycopg2 module
Python Weekly : A Free, Weekly Python E-mail Newsletter
Welcome to Python.org

SQL

Modern SQL : A lot has changed since SQL-92
SQL Indexing and Tuning e-Book for developers

SSH

How to properly manage ssh keys for server access

SimH

DSM-11 - PS8 - Computing & Engineering
GitHub - simh/simtools: Tools useful when using or migrating to or from a simh simulator environment
Open SIMH · GitHub
SIMH Tutorials - Computer History Wiki
SimH Home Page
The Simh Mailinglist Archives
SIMH on SourceForge.net
Xhomer project - Pro 350 emulation
simh github repository

Web

12 Modern CSS One-Line Upgrades | Modern CSS Solutions
A List Apart
Amaya Overview
Analog: WWW logfile analysis
CSS - Contents and compatibility
CSS Font and Text Style Wizard
CSS3 Media Queries
Cascading Style Sheets, level 1
Cascading Style Sheets, level 2 revision 1
Choosing an HTTP Status Code
Code Charts - Scripts
Colour Contrast Check - snook.ca
Global Authoring Practices for the Mobile Web
Google Calendar APIs and Tools - Google Code
HTML 4.0 Special Entities
HTML Home Page
PHP: Hypertext Preprocessor
Randal's WebTechniques columns
Serendipity Weblog System
SitePoint : New Articles, Fresh Thinking for Web Developers and Designers
The W3C CSS Validation Service
The W3C Markup Validation Service
W3C HTML Validation Service
W3Schools Online Web Tutorials
ZVON.org - XML related information and tutorials
demoroniser - correct moronic and gratuitously incompatible Microsoft HTML
osCommerce , Open Source Online Shop E-Commerce Solutions

X Windows/Motif

About ViewKit
Motif Books
Motif Programming - Dave Marshall
The Motif Zone
U++ - Cross-Platform App Development Framework
The Xarm Home Page
xterm / Escape Sequences

XML

The XML C parser and toolkit of Gnome
XML Schema Part 0: Primer Second Edition

iPhone

Building iPhone Apps with HTML, CSS, and JavaScript
iui - UI Framework for iPhone WebApp development