flexbox+flexlib open source

http://flexbox.mrinalwadhwa.com/
http://code.google.com/p/flexlib/source

http://weblog.mrinalwadhwa.com/2007/03/01/flexbox_flexlib/
FlexBox is a directory which aggregates and then points to various flex components available for developers on the web in blogs, discussion lists and various other places, thus presenting all this scattered information in a more structured format.

FlexLib is an open source library of UI components for Flex, the idea here is to create a well structured, good quality, open source code library of Flex Components from scratch by restructuring existing components and creating new ones.