I was just checking into coinmarketcap.com and i notest in third position there was a cryptocurrency i havent seen before so i decided to do a little research on it.
It seems like steem is a cryptocurrency that you earn every time someone upvotes content you published on a site named Steemit. This social platform lets you vote on the quality of the content published by other people, and submit your own content which will be subject to vote as well.
This way you earn steem both by voting on other people's content and submiting your own.
Still learning about it but it seems like is worth a try.