Create a lottery where the only way to participate is to give up Facebook and join my social network. Every once in a while (a few months, sometimes once every

Create a lottery where the only way to participate is to give up Facebook and join my social network. Every once in a while (a few months, sometimes once every day, sometimes almost a whole year), there will be a random selection among those who participate and that person will win $1 million. If you put the money in an index fund, you could potentially do this for a very long time.