For several years now, Bing and Twitter have had an arrangement where relevant tweets are displayed as part of Bing search results. This deal began a few years ago and has now been renewed.
The deal renewal was announced in a very brief blog post on the Bing blog. Extending to no more than three sentences, the post reads: "At Bing, we believe that for every search there is somebody out there who can help. That’s why we have been teaming up with Twitter for a few years to surface public tweets from people who may have something to contribute to what you’re trying to get done with Bing."
"Whether it’s a politician, celebrity, thought leader or friend, our renewed partnership with Twitter ensures that you have near real-time access to what people are tweeting tailored to what you’re searching for," the blog post adds.
This is a very neat feature that really comes into its own when performing searches about breaking news or other current events. Having tweets displayed in Bing search results can be useful to see a wide variety of news sources and content.