Programs Recommended by Karra Shimabukuro

Animoto (free up to 30 seconds unless your teacher has an education code) 
Xtranormal (free, up to a point, then you have to pay for characters, settings, etc. Pay attention when creating yours so you don't go over the free points)
Prezi (zooming Presentations, similar to PowerPoint, but more!)
Glogster (great online, interactive posters)
Fotobabble (record a message, statement, explanation for a photo/uploaded image)
Online Post It Bulletin Board (creates an online bulletin board space where you can post Post-Its and pictures. Great for organizing for classes, or use as a homepage)