The program allows you you to use social media to import tweets, website links, videos, and other resources into slides. If you were do a story about the the development of NATO, you could import a map showing the member countries, provide a link to a video clip about its development, and write a short summary.
My students just completed a Storify assignment on the events of the Cold War. I got some terrific results which suggest that the project really deepened learning and in some instances, judging by the images, I think the kids had fun.
Here's the assignment and directions that I created along with links to several completed stories.
And here's a short explanation of how to use Storify.