Whether you’ve forgotten the name of a function or the property of a cascading style sheet, these quick reference maps deliver the information you are looking for - immediately. Most of those are provided as .pdf or .png-files, so you can print them and use them every day for whatever projects you’re currently working on.

» ActionScript: base, classes and packages
» AJAX: What's AJAX, Prototype and Scriptaculous FX
» Character codes: ASCII, HTML Entities
» ASP/VBScript
» Blogging: Blogger, WordPress, TypePad, Movable Type
» CSS: CSS 1, CSS 2, CSS
» .htaccess Cheat Ssheet
» HTML: HTML, Codes, DOM, XHTML, strict, transitional
» Java
» JavaScript: Cheat Sheet, Reference
» JSP 2.0
» mod_rewrite
» MySQL: Cheat Sheet, Quick Reference
» Oracle PL/SQL
» Perl: RegExps, Quick Reference
» PHP
» Python: Cheat Sheet, Quick Reference
» Ruby: Quick Reference, Cheat Sheet
» XML: Quick Reference, Structures, Data Types, XSLT