A Google spokesperson has told Search Engine Land that it’s not just Reddit that’s being included. Virtually any content might show up in the box, if it’s deemed newsworthy. "We will be pulling from all over the web which means that we will present as diverse a range of voices as possible to ensure we get users to the answer they are looking for. We are always working to give our users the best possible answer to their question. That might come in the form of a video, a press release, a blog, a photo, a social media post or a news article." Get the full story at Search Engine Land