If you've setup a phpBB forum, you might want to check out this SyntaxHighlighter mod for displaying code blocks.
Category - Flex
A way to use FABridge with AS3-only projects, not just Flex-based projects.
If you like to show code samples online, you should definitely check out SyntaxHighlighter. And with this addition, it now supports AS3.
Roger Braunstein just completed the O'Reilly Short Cut Introduction to Flex 2.