Mr. Doob (a.k.a. Ricardo Cabello) is the quiet, but significant, creative contributor on some of the year's most-buzzed-about efforts, including the Milk/Koblin interactive video for Arcade Fire's "Wilderness Downtown." Originally from Barcelona, he uses Flash, OpenGL and 3-D rendering to create stunning and often surprising web experiences. On "Wilderness," users launch Chrome, type in their hometown address, and are swept into a personalized, nostalgic journey through the neighborhood they grew up in. Mr. Cabello was also technical director on Milk/Koblin's "3 Dreams of Black" by Rome. The WebGL music video, featuring artists such as Norah Jones and Jack White, invites visitors into a dreamlike 3D world of their own creation.