It tends to be that more quirky information is picked up on
blogs, not so much tutorials - any guides found on blogs often
cover how to do something specialist in Flex, rather than
illustrating the basics.
I'd recommend flex.org - follow the links from there and see
what you get... alternatively, tell us specifically what you want a
tutorial on ("flex" is quite a broad topic... :) and you'll
probably get some pointers.