Bloggers Carl Zimmer, Ed Yong and Hillary Rosner discuss how science blogs are evolving in a one-hour-plus video from the Cambridge Science Festival. Topics include bloggers' perceived influence on reaction to the report of arsenic-gobbling organisms in California's Mono Lake and how reporting on sexually ambiguous chickens illustrates new ways for scientists and the public to communicate via journalists. Zimmer, Rosner and moderator Cristine Russell are NASW members.