Joss Whedon produced another free comic book on the Internet, "Serenity: The Other Half". As a response to the 2007–08 Writers Guild of America strike, Whedon directed, co-wrote and produced "Dr. Horrible's Sing-Along Blog". It tells the story of Dr. Horrible, an aspiring supervillain, who shares a love interest in a girl named Penny with his nemesis, Captain Hammer. To Whedon the miniseries was "a project of love", an accomplishment that from their excitement would be embellished with passion and "ridiculousness". His half brothers Zack and Jed and sister-in-law Maurissa Tancharoen share the other writing credits. Whedon said it was a "glorious
Warren Ellis would be writing every episode. In 2006, Ellis was hired to develop a science-fiction television series for AMC titled "Dead Channel", but the project was put on hiatus. The series followed a television network executive who discovers the existence of aliens and decides to turn the discovery into a reality show. "Listener", a near-future science fiction novel, was planned as Ellis' next book after "Crooked Little Vein." The novel has since been lost and cancelled. "Wastelanders", a web-based "end-of-the-world" collaboration with director Joss Whedon, was postponed due to Whedon's work on "The Avengers". Ellis and British producer Vivek Tiwary developed