I'd say most of the ethereum-based startups, like swarm city or golem. Right now they're going a Cambrian explosion of different business models, many of which require everyday people to be using cryptocurrencies on a regular basis. Current prices are due to speculation for this eventuality, and personally I'm bullish on crypto, but this feels too much like the 90s was for the internet. Not that that's a bad thing, it's just the natural cycle of innovation.