By: Mark Leon Goldberg on September 07, 2011 I am going to guest host Al Jazeera English’s new social media news show The Stream. The program is a pretty fascinating experiment in what might be called participatory television news. They use Twitter, chat rooms and Google Plus to solicit on air questions and commentary from a global audience, all the while conforming to a sit-on-a-couch talk show format. I’m pretty excited to be part of this experiment. You can hit up @ajstream to ask questions via Twitter, or just go to the homepage. We are going live at 19.30 GMT/3:30 EST. Check it out!