This was long overdue. I had organised a series of technical talks on Actionscript 3.0 (last year during Oct, Nov) with my team at Opera Solutions and these are the presentation slides highlighting our discussion points. I believe these would work as a good reference for anyone who wants a quick check on the fundamentals of the language. I hope these would be helpful, questions and thoughts are welcome 
. Here is the source code zip file used during the sessions – sample code
ActionScript 3.0 Fundamentals
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