Just reading about the ideas behind these start-ups made me feel more excited about digital than any online marketing campaign i have seen last year. It really interesting how all those people are recognizing opportunities in the every possible combination of people's behavior and technology while ad industry is still sticking to doing what they have been doing for the past 100 years. (see Bergdorf Goodman ad above, for example). The full slideshow is here, and you can read the accompanying article here.