Actionscript
- Quick reference/Cheatsheet for ActionScript 2.0
- ActionScript 3.0 Cheatsheet - flash.display Package
- ActionScript3.0 - Top Level Classes
- ActionScript3.0 - Packages
- Apollo Cheat Sheet (Apollo mx.controls & mx.core Cheatsheet, Apollo flash.display & flash.events Cheatsheet and Apollo flash.filesystem, flash.html & flash.system Cheatsheet)
Ajax
- What’s Ajax? Cheat Sheet - PDF
- Prototype Dissected - Cheat Sheet PNG
- scriptaculous Combination Effects - Cheat Sheet - PDF
Apache
- Apache Cheat Sheet
- Apache 1.3 Quick Reference Card - free quick reference cards - PDF
- htaccess Cheatsheet
- mod_rewrite Cheat Sheet - PNG
- mod_rewrite Cheat Sheet - PDF
ASCII Character Codes
- ASCII Codes Cheat Sheet
- Character Entity References in HTML 4 and XHTML 1.0
- HTML Character Entities Cheat Sheet - PNG
- HTML Character Entities Cheat Sheet - PDF
- HTML special character reference
- HTML - Special Entity Codes
- Reference Special Characters
- Special ASCII HTML Character Codes
- XHTML Character Entity Reference
ASP
C# and VB.NET
CSS
- CSS level 1 - Quick Reference Card - PDF
- CSS level 2 - Quick Reference Card - PDF
- CSS 2 - Quick Reference Guide - PDF
- CSS Cheat Sheet - PDF
- CSS Cheat Sheet - PNG
- CSS Property Index
- Cascading Style Cheatsheet
- CSS Shorthand Guide
CVS
C++
- C++ Containers Cheat Sheet
- C++ Quick Reference Sheet (Cheat Sheet) - PDF
- How to Program in C++ - Language Summary
Django
Firefox
- Firefox Keyboard Shortcuts - PDF
- Firefox Shortcuts Sheet
- Mozilla Firefox Cheat Sheet
- Mozilla Thunderbird Cheat Sheet
- Keyboard Shortcuts
- Gmail Shortcuts (printable cheatsheet)
- Google Advanced Operators (Cheat Sheet)
- Google Cheat Sheet (Version 1.06) - PDF
- Google Cheat Sheet - auch als PDF
- Google Cheat Sheets - auch als PDF
- Google Help : Cheat Sheet
HTML/XHTML
- A Simple Guide To HTML - Cheat Sheet
- HTML & XHTML Tag Quick Reference
- HTML Cheat Sheet
- HTML Cheatsheet
- HTML Entities
- HTML CODES CHEAT SHEET
- XHTML
- HTML Cheat Sheet
- XHTML Cheat Sheet v. 1.03 - PDF
- HTML DOM - Quick Reference Card - PDF
- XHTML 1.0 frameset - Quick Reference Card - PDF
- XHTML 1.0 strict - Quick Reference Card - PDF
- XHTML 1.0 transitional - Quick Reference Card - PDF
- XHTML Quick Reference Guide For XHTML 1.1
Java
- Java 1.5 Cheat Sheet
- Java Quick Reference - PDF
- JSP Quick Reference Card
- (JSPª) SYNTAX version 1.1
- (JSP™) SYNTAX version 2.0
JavaScript
- JavaScript Cheat Sheet - PNG
- JavaScript Cheat Sheet - PDF
- JavaScript Reference
- JavaScript Reference
- JavaScript and Browser Objects Quick Reference
- Regular Expressions for JavaSript - free online quick reference
LaTeX
Microformats
Misc
- CHMOD Chart
- Complete listing of common camera symbols.
- The Unicode-Database
- RGB Hex Colour Chart - PNG
- Pretty Good PGP Reference Card
- Search Engine Cheat Sheet
- Quick Reference Cards
Ada, C, C++, CSS, CVS, Delphi, DOC++, Html, Java, JSP, Perl, PHP, Linux, Unix, SQL, UML, XML
MySQL
- MySQL Cheat Sheet
- MySQL Cheat Sheet - PDF
- MySQL Cheat Sheet - PNG
- MySQL Cheat Sheet
- SQL Cheatsheet
- MySQL Quick Reference Card
Oracle
- Oracle PL/SQL Cheatsheet
- Oracle Cheat Sheet
- Oracle Server 9i - Quick Reference Guide
- Oracle SCM Installation Cheat Sheet
Perl
- Perl Regular Expression -Quick Reference - PDF
- Perl Cheat Sheet
- Perl Cheat Sheet
- Perl 5 Cheat Sheet
- Perl Quick Reference - PDF
- Perl Quick Reference Card - PDF
- Perl Regexp Quick Reference Card - PDF
Photoshop/Gimp
- Gimp Quick Reference Card v.1.0
- Photoshop 7.0 Quick Reference Card for Windows - PDF
- Photoshop CS2 Keyboard Shortcuts (Windows) - PDF
- Photoshop CS2 Keyboard Shortcuts (Macintosh) - PDF
PHP
- symfony PHP5 framework - Admin Generator cheat sheet - PDF
- PHP Cheat Sheet - PDF
- PHP Cheat Sheet - PNG
- PHP Cheat Sheet with special php syntax
- PHP PCRE Cheat Sheet
- Regular Expressions Cheat Sheet - PNG
- Smarty cheat sheet for template designers - PDF
Python
- Python 101 cheat sheet
- Python Cheat Sheet
- Python Cheat Sheet - PDF
- Python Quick Reference
- Python 2.4 Quick Reference
Regular Expressions
Ruby
- ActiveRecord Relationships - Ruby on Rails cheat sheet guide - PDF
- Ruby Cheatsheet
- RubyOnRails-Cheatsheet - PDF
- Ruby on Rails Cheat Sheet - PNG
- Ruby on Rails Cheat Sheet Collectors Edition
- Ruby on Rails cheat sheet guide - PDF
- Ruby quick reference
- Ruby Cheatsheet
- Threadeds Ruby Cheat Sheet
- What Goes Where? - Ruby on Rails cheat sheet - PDF
Unix/Linux
- LINUX Administrator’s Quick Reference Card - PDF
- Linux Shortcuts and Commands
- quick_reference [GNU screen]
- Unix Cheat Sheet
- The One Page Linux Manual - Version 3 - PDF
- TCP Ports list (3498 ports in list)
- Treebeard’s Unix Cheat Sheet
- Unix command cheat sheet - common commands for the unix command line
- Essential Vim keyboard shortcuts Cheat Sheet
- VIM Quick Reference Card
- VIM Quick Reference Card
- Vim Commands Cheat Sheet
Weblog
- Blogger Cheatsheet - PDF
- Quick Reference Chart - ExpressionEngine Documentation - PDF
- TypePad Cheatsheet - PDF
- Movable Type Cheatsheet - PDF
- MovableType
- WordPress Cheatsheet - PDF
- WP - WordPress Cheat Sheet für Theme Tags und Plugin-API - PDF
Windows
- An A-Z Index of the Windows NT/XP command line
- Graphical vi-vim Cheat Sheet and Tutorial
- Power Point 2000 - Keyboard Shortcuts
- POWERPOINT 2003 - Quick Reference Card
- Quick Reference Card for Windows®
- TCP Ports list (3498 ports in list)
- Windows - Alt Key Numeric Codes
- Windows XP Service Reference - PDF
- XP Keyboard Shortcuts: version 2 - PDF
XML
- Fusebox 4.1 XML Cheat Sheet
- MathML Reference - PDF
- VoiceXML Reference - PDF
- XML TopicMaps 1.0 - Quick Reference Card - PDF
- XML Quick References - PDF
- XML Schema 2001: children - parents - PDF
- XML Schema 2001: elements - attributes - PDF
- XML Schema 2000/10 - PDF
- XML Schema - Structures Quick Reference - PDF
- XML Schema - Data Types Quick Reference - PDF
- XSL FO Reference - PDF
- XSLT Quick References - PDF
- XSLT Quick Reference Card - PDF
- XSLT Reference
