The crowd sourcing concept is brilliant. Along with nanotechnology, cloud computing, they are all based on principles that nature uses to create this universe. In fact the collective consciousness is fascinating to me, I would like to develop more sites that use input from millions to create things. Anyway, Crowd Spring is an amazing site based on the crowd sourcing concept. Lately I have been doing some projects there as well as 99Designs. Its a great way to flex your design muscles if your ever in a rut and develop your portfolio as well. Here are some recent samples.