Online Resource for Powerpoint

I figure powerpoint to be pretty easy, pick a template, throw some pictures in there, type some information, boom, you have a powerpoint. But this site I came across, really opened up the possibilities of what a good powerpoint presentation can do. But this one page in particular helped. Instead of cramming a bunch of points on one page, spread it out. This way you give yourself and the viewer time to elaborate on the point and it makes the importance of the point stand out more.