The media apps -- joining veterans such as The Guardian's social news app and Washington Post Social Reader -- are a platform for users to discover and share content.
Facebook writes in a blog post that its news apps have driven significant traffic, increased engagement and introduced media outlets with a new, younger demographic.
The beta round of media partners were launched at f8 in September, including Yahoo News, The Washington Post, The Guardian, The Independent and The Daily. Digg also launched an app in December.
In addition to the Mashable app, the new set includes Buzzfeed, CBS Local: Los Angeles and New York, CMT, The Daily Show, The Huffington Post, GetGlue, MSNBC.com, MTV News, Pixable, Sporting News (coming in March) and TODAY Show. Among that group, GetGlue and Pixable stand out as non-news sites and we're eager to see how those apps change the sharing experience on Timeline.
Facebook also released some numbers on the reach of its first wave of apps, since their launch at f8. Yahoo News has seen 25 million people opt into Social Bar and the app has 2 million daily users. The Guardian's app has been installed 5 million times, with 50% of users ages 24 and under. Digg Social Reader has driven a 35% increase in readership.
Are you using any social reader apps on Facebook? Where do you see the platform going? Let us know in the comments.
UPDATE: This post initially said The Huffington Post launched in November. It too launched Thursday.