Twitter recently announced an expansion of its Amplify ad program so it is more accessible to publishers and advertisers.
Amplify is a video ads program where publishers embed a short video clip in a tweet, then the advertiser includes a short pre-roll ad (typically :10 to :15 seconds) in the tweet and pay to promote the tweet in Twitter.
In the new version of Amplify, advertisers no longer need to work with specific publishers. They will instead be able to choose a content category, then Twitter will automatically include their pre-roll ads in videos tweeted by relevant publishers.
This not only makes the process easier for advertisers, it gives publishers a monetary incentive to share their video clips on Twitter.
The revenue split is potentially in the 70% publisher and 30% for Twitter range.