Spicynodes

According to Common Sense Education, "SpicyNodes is a website that can be used to create mind maps, take notes, write a story, or capture any information that lends itself to a non-linear presentation. You'll begin by adding content into separate nodes using a database-like interface. Content can include plain text, images, video, or audio, which you can upload or snag from the Internet. Things look pretty technical at this point, but you can always click Preview to view how your info will look in the actual nodemap. Once a map has been developed, you can fly around it, zooming in on nodes and exploring info."

This strikes me as a way to present  information, similar to Prezi but different.  As an educational tool, I think Spicynodes would be great to preview a course or review a unit.  See an example by clicking here.  For a tutorial, watch the video below.  To see the website, click here.