Prezi – a presentation app that zooms in and out. It is free, relatively easy to use. Appears dynamic, unlike PowerPoint. It’s free.
Storify – pulls together content from different social media, such as Twitter, to create a story. It’s free.
Flipagram – you use photographs and music to create a story online. It’s free.
Transom.org Techniques – a host of ways to present stories in audio format. Recommended by my brother who is a retired professional sound engineer and musician.