Modernista! are a US based advertising agency and marketing firm, who have launched their new Web Site which is essentially siteless.
This is truly a Web 2.0 environmnet with a little nav bar at the top left. For example, Google their name and click on the first entry (Modernista!), and you are brought to the same results page but with that added nav bar. Click on “About” and you can go to either the Wikipedia entry for “Modernista” or their Facebook page. They display their past work in Flickr, YouTube and del.icio.us. Want “n3wz” on the company? They’ll send you to Google News.