I am holding a Social Media contest. I want increase the number of Fans / Followers for my page (Facebook and Twitter). There is no targeted audience for now. The contest is a series of questions asked every few days. For now, we're planning to pick a winner out of the person who answers all of the questions the fastest (so that he / she will like / follow the page to get quick updates). What can I do to get them to share it more? How to maximize sharing for Social Media Contests?