MySpace Dark Horse Presents has posted Penny: Keep Your Head Up, the new Dr. Horrible’s Sing-Along Blog online comic by Zack Whedon and Jim Rugg.
Previous Dr. Horrible Comics:
Moist: Humidity Rising by Zack Whedon and Farel Dalrymple
Captain Hammer: Be Like Me! (Nemesis of Dr. Horrible!) by Zack Whedon and Eric Canete