I've recently been appointed Program Coordinator of Humanity+ (http://www.humanityplus.org), which is another big organization in the SIAI/FHI/Kurzweilian/futurist space. If you're interested in volunteering to help us out, you can contact me at pphysics141@gmail.com. If you're interested in volunteering to help out the Singularity Institute, you can also contact SIAI Volunteer Coodinator Louie Helm at seventeenorbust@gmail.com. Thanks for your help!