Are you familiar with Lunyr (LUN token)? Little startup project that's apparently about to move into Beta; they're trying to build an incentivized Wikipedia-type system using Ethereum smart contracts. They have about a $60MM market cap right now. I'm involved in their private Alpha and I've been seeing nice steady development of the platform, which makes me optimistic.

Of course, just like anything, when the air finally comes out of bitcoin, it will probably come out of every cryptocurrency -- so buying anything at the moment should be considered extremely extremely risky. It could all come crashing down at any moment.