The phrase "additional content includes" is correct and usable in written English.
You can use it when introducing or listing extra materials or information that supplements the main content.
Example: "In this report, additional content includes case studies, expert interviews, and statistical data to support our findings."
Alternatives: "supplementary material consists of" or "extra content features".
In addition to peer-reviewed research articles, the journal also features additional content, including regular commentary from key experts in various fields.
Users could explore both collections via all manner of additional content, including a behind-the-scenes look at life with Gigi Hadid, and a journey through a gamified maze with the models from Burberry.
There's also some additional content including training, best practices and productivity tips — all available from the app.
The experience will also include additional content, including links to "Idol" videos on YouTube, tools to share your thoughts on Google+, and more.
There's also some additional content including training, best practices and productivity tips — all available from the app.
WatchESPN likewise offers additional content, including live programming from the sports network, including major golf tournaments, Barclays Premier League, U.S. college sports, tennis and more, as well as recorded shows and access to ESPN cable channel content.
Like most news organizations, the LA Times is determined to find ways to improve readers' online experience through additional content including video, photo galleries, interactive graphics, and searchable databases, along with a redesign to make the site more visually engaging and to convert that growing readership into a revenue base via online subscriptions.
One disc contains the film; the other has additional content including a "making of the film" documentary, the original beginning and deleted scenes.
Additional content included the Super Samurai Spaceman pack containing three outfits; the Superhero costume provides a buff at the start of battle, the Samurai costume provides a buff on defeating an enemy, and the Spaceman costume provides a defensive shield.
Additional website content includes archive from previous Six Nations, blogs, in-depth features and all the latest news, pre-match interviews, build-up, comprehensive live text commentary service and post-match reaction.
