Facebook has started a fellowship program for Ph.D. students studying in US universities. The students will be encouraged to solve the complex problems pertaining to the field of CS in following areas: Internet economics, cloud computing, social computing, data mining, machine learning, and systems and information retrieval. They will pay the tution fees and provide an stipend of $30,000. This, according to me is a very good move by facebook to directly attack practical problems armed with the power of academia and proceed to some real advancements in CS
Their fellowship page contains more information.