Twitter is currently testing Timeline Ads that would be embedded on third-party websites, opening up a new revenue stream for publishers

Currently in alpha, the new Twitter ad program aims to serve targeted ads directly into timelines embedded on sites, offering advertisers access to more ad inventory.

Twitter comments on the matter as follows:

“We are continuing to evolve and iterate the ways in which we can work with publishers to help them generate revenue through unique real-time content monetization opportunities, on and off platform. We are running an alpha test to explore new channels of demand with OpenX, and are looking forward to seeing how this evolves.” 

The revenue earned from Timeline Ads would be divided equally between Twitter and the publisher.

Read more here.