More than just one site, these designed marketing vehicles for Adobe's suite of development tools are great interactive 'mini-sites'.
These sites dazzle and amaze with rich-media, dynamic movement, animations and novel navigational interfaces. Smash showcases with a 4-Quadrant navigation, while Defy takes you through a linear walk-through of a ground-up development of Defy itself with it's 'reverse deconstruction' metaphor for the design.
Adobe recently released a third such promo-site featuring more of the same with a slightly more hip & digital design - to market to even younger users. (See link below).