An ActionScript 3 Library that contains a number of classes and utilities for working with ActionScript? 3. These include classes for MD5 and SHA 1 hashing, Image encoders, and JSON serialization …

Signals is a new approach for AS3 events, inspired by C# events and signals/slots in Qt.

User interface components for Starling Framework, ActionScript 3, and Adobe AIR

the Hype Framework is a collaborative visual framework developed in FDT and AS3 by Branden Hall and Joshua Davis.

An AS3 SVG Renderer for Flash Player.

A tiny yet powerful library to deal with navigation and flow in your ActionScript projects

a framework of useful Actionscript classes

Utilities for working with SQLite databases in AIR

Adobe AIR based SQLite administration (discontinued project)

Android UI Components built for Flex 4.5

[Official AlivePDF] - AlivePDF is a client side AS3 PDF generation library for Adobe Flash, Flex and AIR

This is a continuous (infinite/looping) slideshow component for Adobe Flex

Robotlegs example address book application

Examples (and non-examples) of using workers for concurrent programming in ActionScript 3.

Sample application from my 360|Flex talk "Optimizing Mobile Applications - So Easy a Designer Could Do It"