https://techcrunch.com/2018/02/13/salon-coinhive-cryptocurrency-mining/

In the age of altcoins, at least one news site is taking a novel approach to making ends meet. Salon announced today that it would give readers a choice between turning off ad-blocking software or “allowing Salon to use your unused computing power” in order to access their content. If you say yes to the latter deal, Salon will then invite you to install Coinhive, a software plugin that mines the cryptocurrency known as Monero.

Salon explains its program, which it calls a beta, like so: