After Effects has this little things called expressions. You may have seen them in our tutorials. You may also fear it like the Chupacabra, but the fact is, they are here and they are real as are the goat eaters.
The majority of expressions I use are simple equations, so simple they can hardly be called equations. However they can be very powerful as well with a little bit of knowledge.
Check this site out for a great overview and very good solid information:
http://www.jjgifford.com/expressions/basics/index.html
And for some more practical examples check out Dan Ebberts newly designed site:
MotionScript.com
Be sure to click on the design center.
For now, I have to go check on the live stock :=
QUESTION: Are the expressions in the online tutorials easy to follow and understand? At the very least is everybody comfortable with pick whipping of other parameters and linking them to others through expressions?