Looking for creative and not difficult ways to make presentations

I figured I'd put a call out to my network. I'm creating a short overview of technology for a couple of courses that I'm designing. I'm looking for an interesting / creative tool that will allow me to present the information – note that both courses are online, and ideally, I'd like the presentation to be mobile friendly but also work on PC/Mac.

I couldn't find a decent overview of technology for this audience (educators who are taking a graduate course in educational technology). Everything I've found so far is either too technically detailed or just assumes that the audience will understand the underlying technology somehow – perhaps osmosis. 

So, I figured I'd ask you – have you come across a good overview of technology (or overview of mobile technology)? And, can you recommend a tool for creating presentations (save me from PowerPoint/Keynote/Prezi please!)?

Thanks!