http://greyscalegorilla.com/blog/2010/04/fun-with-precomping-in-after-effects/

http://ae.tutsplus.com/tutorials/motion-graphics/show-picasso-what-youre-made-of-with-soundkeys/

http://ae.tutsplus.com/tutorials/motion-graphics/create-a-particle-breakup-logo-transition/

http://filmmakeriq.com/2009/11/after-effects-photoshop-tutorial-growing-vine-animation/

 http://ae.tutsplus.com/tutorials/motion-graphics/create-a-heart-monitor-with-expressions/

http://ae.tutsplus.com/tutorials/motion-graphics/generate-your-own-splendid-spirographical-designs/

http://ae.tutsplus.com/tutorials/motion-graphics/generate-a-dynamic-morphing-background-design-with-sinedots/

http://ae.tutsplus.com/tutorials/motion-graphics/give-your-video-a-pencil-sketched-look/