STEEMIT

Steemit is a social network that combines the creation of content, interaction with users and the use of a cryptocurrency called Steem. The project was founded by Ned Scott and Dan Larimer, creator of Bitshares

The idea was described in March 2016 in the Whitepaper [1]

The way it works resembles websites like Reddit. The only difference is that all text content is recorded forever in a Blockchain.

The users or members can make an upvote to the content they want and depending on how many votes are obtained, a reward will be obtained in the form of Steem, Steem power or Steem dollars.

The fact of voting content also makes rewards in the form of Steem. It's what they call Curation Rewards. Even comments can be voted on and in this way get monetized. Steem [edit]
It is the cryptocurrency on which Steemit is based. It is quite similar to Bitcoin, although a big difference is that the rewards are more for authors and curators than for the creators of currency or miners.