SlideBoom – Previously I had shared about SlideShare as a way to share and embed powerpoints onto a web page.  Another option is SlideBoom.  What I like about SlideBoom is that the sound that you have recorded on the powerpoint transfers over.  Also the links stay active.  I have embedded a powerpoint I found on the site that explains how to add sound to a powerpoint.  A great teaching idea for absent students or at home reviews!