The chairs are back…everyone at the Fortune iMeme conference has a Herman Miller Aeron chair at the ritzy Ritz Carlton here in SF.

Mark Zuckerberg, CEO of Facebook, is on the opening panel: Facebook is a technology company…media companies are about content, technology companies are about building layers in the stack so that others can build in top of it.

Then others, Marc Benioff, CEO, salesforce.com, Marissa Mayer, Google and Philip Rosedale, CEO, Linden Lab did a lot of posturing on what platforms are etc.