Evan Puschak dives into several hypothetical ways in which voter turnout in the United States could be increased. Some of those ways include using the public voting record of individuals to shame them into participating. An example he gives and one that I think would be super effective (but would probably make a lot of people angry) is for Facebook to publically say whether or not you've voted on your FB profile. Imagine that! That's some Dave Eggers The Circle right come to life right there (great book by the way)!