Facebook has expanded Audience Network to include mobile web support.
Originally launched for in-app ads in 2014, Audience Network links up Facebook's buying platform with a network of third-party inventory, offering Facebook's native ad units and user targeting capabilities outside of the social network. It seems to have been a success - Facebook recently revealed that spend through the network had hit a $1bn annual run rate.
There was word earlier this month that Facebook was testing Audience Network with a group of 10 web publishers, which the official announcement confirms includes USA Today, Time and Hearst. With this launch, initially an open beta, that is being extended to virtually any publisher.