It's easy to be cynical when you hear about voter registration campaigns from social networks. How many people really sign up because of a digital nudge? Quite a few, apparently. Snap told the New York Times that its Snapchat campaign had helped 418,000 people register in the space of a two-week period, many of them in hotly contested states like Florida, Georgia, Ohio and Texas. The initiative had combined a registration button on users' profiles with snap videos asking them to register.