FFDMag had excellent magazine for flash and flex programmers having articles ranging from Beginner Level to expert levels. Just check some of the topics below

• Flash Flex developer interview with Dave Schroeder about the Flashbelt Conference…
• BannerSnack – A quick alternative to Flash?…
• Working With Flash CS4 New Features: Inverse kinematics (IK) with Bone Tool…
• Tracking Time with Screenweaver HX…
• Using all the different components within CS4 to built a complete site…
• Model View Controller – What’s the Secret Sauce… ?…
• JSFL Quirks…
• SWX: The Native Data Format for Adobe Flash…
• An introduction to Flickr In Flash…
• Flash video and AS3…
• WebORB tricks…
• Multi-user Applications in haXe…
• Achieving a retro-style using only Flash…
• Secrets of a professional Flash game programmer…
• Interview with Lee Brimelow…

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http://ffdmag.com/prt/view/subscription.html