My current favorite uses of blockchain tech.

Bitsquare.io, decentralized exchange with TOR integrated right off the bat and supports alt coins. It just needs more users to have volume, that is it.

OpenBazaar.org, decentralized marketplace with TOR coming in a new released, STEEM being able to be used with it literally right around the corner https://steemit.com/openbazaar/@cryplectibles/openbazaar-using-steem-within-app

Steemit.com, blogging and value system in a way that probably won't be able to be replicated easily thanks to Steem already having a great community going along with the tech.

The future and just near future are looking good for cryptocurrency and all us users of it, we got some great tools available right now, if you aren't using all the three things above, you should be.