Plexus with Expression Timeline
Expression Timeline is an awesome script for After Effects written by Mathias that helps to create smooth transitions between various expressions along the timeline. In this tutorial Mathias uses Expression Timeline along with Plexus to create a very cool animation.
After Effects tutorial: Time(line) for Plexus from Mathias Möhl on Vimeo.
If you want to know more about Plexus or Buy a license check out the product page.