Flowgram looks like it could be an interesting tool for putting teaching materials or presentations on the Web. It allows you to build presentations using PowerPoint slides, websites, your own images and documents, and your voice or music. Once you’ve built a presentation, you can share it by linking to it, embedding it in your website, or putting it on Facebook or other social networking sites.
It’s free (registration required) and you don’t have to download anything. Unfortunately, it didn’t seem to work in Firefox, but it did work in Safari. The creator and player interfaces loaded really slowly but were pretty straightforward once they showed up. I wouldn’t use Flowgram to make anything crucial, at least not until it’s more stable and better established, but it could be fun to play with — and perfect for digital storytelling.