I've just created a new horror blog that will be like a 'choose your own adventure' story about a survivor of the zombie apocalypse. It's at
www.journaloftheliving.wordpress.com.
Some of the main character's blog entries will feature a poll where he asks for advice. You can vote on what he should do next until the following entry in his journal is published, with the majority vote influencing the way his story continues. This story will only work if people vote on his decisions - so I hope you will vote before the first undeadline.