If you're bored of following @BronxZoosCobra ever since he was rediscovered and put back in the Reptile House than perhaps you'd enjoy the new goofy Twitter of the day @SarcasticRover. The tweets are particularly great for those who just couldn't get enough of Marvin The Paranoid Android from Douglas Adam's universe.
My favorite Tweet? The one about George Lucas' artistic integrity.
Even Shatner calls it a "she"...