The easiest way to explain Publish0x is quoting what they say:

Publish0x is a crypto agnostic publishing platform similar to Medium, where both author and reader earn.

How writes and readers earn? through tippings. A user can tip an article. When tipping, both the author and reader earn. Tips are free for both the author and reader, and come from Publish0x rewards pool.

Publish0x is not trying to become a social network. It is a publishing platform open to select approved authors.

Users can earn crypto in three different ways:

by Reading -  both the author and the reader earns on Publish 0x - yes you earn cryptocurrency while you read!

by blogging - Authors earn crypto when readers tip them (tips are free for both readers and authors)

by Sharing great articles

They are crypto agnostic and actually they  have 2 tokens BTNY and HYDRO, but they will be adding ETH-erc20s in a future update.

A cool thing about Publish0x is that it can be a sort of passive income because there is no limit in time, or in token, that a user can tip your articles. So users can keep tipping tour articles and you can withdraw your tokens whenever you want and sell them on exchanges. 

If you want to have more places to share you quality content and earn something from it, just try Publish0x. Sign up using this link: https://www.publish0x.com/?a=WJxbonYagw