What is Web 2.0? (Part III)

You remember I mentioned in my first post about Web 2.0 that I was preparing to deliver a presentation on the topic to some folks at McCann Erickson in London? No? Ah. Well, I was. And I promised to post the presentation on this blog. So here it is, courtesy of slideshow-hosting site Slideshare, which itself is a good example (they hope) of a  Web 2.0 site - kind of a YouTube for Powerpoint slides. Monetization strategy seems  to be Google Adsense revenues, as you'd expect.