The employment stats above (also the ones below the break) tell a complex tale. Work in theatrical feature animation has been large and growing. Television employment? Welll ... not so much. That side of the biz has been smaller, and shrinking, even as overall totals have been growing ...
Since January every large feature studio -- Disney, DreamWorks, and IM Digital up in San Rafael -- have added to staff. (The exceptions are Imagi, which has no changes in staff size, and Sony Pictures Animation, now going through a rough patch as it replaces executives and sheds artists lining up its ducks about SPA's next animated feature. Which looks, as of this writing, like it will be Cloudy with Meatballs.)
Now take a look at "Employment Per Studio: January 2008 -- August 2008." You'll note that most television animation facilities endured declines in staff sizes. Film Roman and Nick had the largest job reductions, and Universal the smallest, but five out of seven teevee 'toon studios shrank rather than expanded.
So artists who've complained about how slow the television wing of animation is, have some basis for their gripes. There's work out in the small-screen marketplace, but it ain't getting bigger, certainly not at the moment. I keep hearing rumors that new shows are in the pipeline, but outside of The Cleveland Show at Fox Animation, I couldn't tell you what they are. (Cartoon Network is greenlighting a number of shorts, and hopefully some of these will generate new series, but we're months away from that possibility.)
The good news is: Union employment is pretty robust, and it's been growing. The bad new is, the growth is uneven.