I’ve been a fan of PowToon for over a year now.  It’s a great way to produce dynamic, animated presentations for a variety of topics.  It’s easy to use and makes for a great way to catch your audience’s’ attention.  You can see one of my Powtoon videos here:

http://www.powtoon.com/embed/e4uzid6bc4h/

PowToon Makes It Easy To Create Animated Videos And Slideshows