I thought earn.com (formerly 21.co) was a clever idea and I signed up. Once or twice a quarter I would get an item incoming and I'd usually read and/or fill out a survey. Lately it's frequent noise from ICOs (though perhaps I deserve it because I recall opting in to a cryptocoin interest group on earn.com).
There is nothing interesting coming out of cryptocurrency space other than ICO spam
Interesting things in crypto-blockchain tech, today:
* Origin
* NuCypher (disclaimer: I'm on this team)
* Loki
* New version of web3.py / other python tooling becoming mature
* Trustless Quorums
* Distributed validation
I can go on and on. But I just don't see how anybody can think that these are uninteresting times for this tech.