reddit, the 10+ year old site, has been busy lately, having launched the Upvoted podcast, Upvoted weekly email digest, Ask Me Anything app, and reddit Live in the past 9 months. All of these products are completely tangential to the core reddit.com experience, giving them an opportunity to experiment and build interfaces/experiences that makes sense for that medium or content. It makes sense because changing the design of their super established community is dangerous.
Here's a screenshot of their channel list:
@alexisohanian / @ekp - of all the apps you could build on top of reddit, why this?
Product Hunt