Flash :
Google can now discover and index text content in SWF files of all kinds, including self-contained Flash websites and Flash gadgets such as buttons or menus. This includes all textual content visible to the user. Google supports common JavaScript techniques. In addition, we can now find and follow URLs embedded in Flash files. [...]

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Robert Penner has develop new approach for AS3 events, inspired by C# events and signals/slots in Qt. This project call Signals. This can be an alternative solutions to manage your Events.
Here are the Concept and Philosophy sections for a start:
The Concept
 

A Signal is essentially a mini-dispatcher specific to one event, with its [...]

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