This is how we know we're in a Web 2.0 bubble
This is now the required PowerPoint slide for why Web 2.0 is important, namely that there are more companies and logos than will comfortably fit on a slide, at least if you want them to be readable. And the combined revenue and profits of all these companies is to first or second order, zero.
Thanks to BoingBoing for the link and Ludwig Gatzke for the actual creativity and work.