I should say right off that my experience of using slides is very new (as in, I created my first PowerPoint slide this afternoon for a presentation tomorrow – I’ll let you know how it goes in the comments!). Reading Ange’s suggestions, and browsing SlideShare, (hopefully!) helped me to avoid some of the pitfalls of using slides.
Being new to presenting, I’m not sure I’m ready to use advanced software like Prezi. I can see the advantages (and I’m sure the audience would find my talk much more interesting) but I find it hard enough just getting my points in the right order, without playing around with the screen as well.
I will be taking a fuller look at Prezi once I’ve delivered my talk though – as a tool for sharing a presentation online it looks like it’s streets ahead of my boring PowerPoint slides. If I manage to revamp those I’ll post a link.