There is some good information available. Although most of this
is presented using traditional animation techniques (pencil and
paper) all of the methods involved can be adapted to your computer
animations, in fact your computer animations will improve immensely
if you study traditional cartoon animation methods.
has some great resources for both Animation and Cartooning with Flash.
Don't miss the great free Flash stuff that you can download.
If you want to improve your Flash skills, then a good starting point
is to head over to ultrashock.com
and have a look at the tutorials available. Most of them can be downloaded
in PDF format for viewing off-line, and you can also download the
corresponding Flash file.