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I've never used it myself but I've heard good things about google's html5 slides.

http://code.google.com/p/html5slides/

Seems like it would fit your easy to distribute requirement too.

This looks great! Thanks.

I would still recommend slideshare as the best bet. In the first page you can have a QR code. Also all slides can have a shout key (http://shoutkey.com/).

Impress.js http://bartaz.github.com/impress.js/#/bored

Like Prezi, but JS

Very cool indeed, but not what I'm looking for. I'm trying to focus on the content more than the presentation, but +1 for badass use of html5 + css3

If it doesn't have to be HTML, LaTeX Beamer works well and lets you create a PDF that is portable and easy to distribute.

Keynote -> upload to SpeakerDeck

I'm trying to move away from proprietary formats where possible, but I'll have a look. Thanks!

Ask HN: Preparing slides?