Must have useful cheatsheets
(photo credits: David_Stubbart)
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
What’s Ajax? Cheat Sheet – PDF
Prototype Dissected – Cheat Sheet PNG
scriptaculous Combination Effects – Cheat Sheet – PDF
Apache Cheat Sheet
htaccess Cheatsheet
mod_rewrite Cheat Sheet – PNG
mod_rewrite Cheat Sheet – PDF
ASCII Codes Cheat Sheet
Character Entity References in [...]